【油車 vs 電車】5 年總成本精算:買錯多花 50 萬?用數據算給你看
[Gas vs Electric Car] 5-Year Total Cost Analysis: Could Wrong Choice Cost NT$500,000?
發布日期:2025-11-26 | 分類:買車決策
Published: 2025-11-26 | Category: Car Buying Decision
你是不是也遇到這些狀況?
❌ 業務說:「電車超省!一個月電費才 500 元!」
❌ 朋友說:「油車比較實際啦,電車充電超麻煩!」
❌ 你心想:「到底該買哪一種?好糾結...」
問題是:他們都只講「對自己有利的部分」
- 電車業務不會告訴你充電樁安裝費和電池衰退風險
- 油車業務不會告訴你 5 年燃油費可能超過 30 萬
- 朋友的經驗不一定適合你的用車習慣
💡 GoalApp 的做法:不猜測,只計算
我們不推銷任何品牌,只給你真實的數字。今天用實際案例,5 分鐘算給你看:Toyota Corolla Altis vs Tesla Model 3,5 年下來到底差多少?
📊 實際案例:Toyota Corolla Altis vs Tesla Model 3
前提條件
讓我們用一個最常見的情境:
- 購車預算: 150 萬以內
- 預計持有: 5 年
- 年行駛里程: 15,000 公里(平均通勤族)
- 油價: 32 元/公升
- 電價: 3.5 元/度(家用充電)
情境 A:油車(Toyota Corolla Altis 1.8 汽油版)
購車成本:
- 車價:90 萬
- 頭期款:30 萬(33%)
- 貸款:60 萬(5 年,年利率 3%)
- 月付金:10,784 元
5 年持有成本明細:
| 項目 |
年度成本 |
5 年總計 |
| 燃油費(14 km/L) |
6.4 萬 |
32 萬 |
| 牌照稅 |
1.1 萬 |
5.5 萬 |
| 燃料稅 |
0 |
0 |
| 保養維修 |
1.6 萬 |
8 萬 |
| 保險 |
3 萬 |
15 萬 |
| 年度總計 |
12.1 萬 |
60.5 萬 |
- 購車 + 持有總成本: 90 萬 + 60.5 萬 = 150.5 萬
- 5 年後殘值: 約 45 萬(50% 保值率)
- 5 年淨成本: 150.5 - 45 = 105.5 萬
情境 B:電車(Tesla Model 3 Standard Range)
購車成本:
- 車價:160 萬(政府補助後)
- 頭期款:50 萬(31%)
- 貸款:110 萬(5 年,年利率 3%)
- 月付金:19,777 元
5 年持有成本明細:
| 項目 |
年度成本 |
5 年總計 |
| 充電費(6.8 km/度) |
1.1 萬 |
5.5 萬 |
| 牌照稅 |
0(前 6 年免稅) |
0 |
| 燃料稅 |
0 |
0 |
| 保養維修 |
0.6 萬 |
3 萬 |
| 保險 |
3.6 萬 |
18 萬 |
| 年度總計 |
5.3 萬 |
26.5 萬 |
- 購車 + 持有總成本: 160 萬 + 26.5 萬 = 186.5 萬
- 5 年後殘值: 約 80 萬(50% 保值率)
- 5 年淨成本: 186.5 - 80 = 106.5 萬
🔍 真相:5 年淨成本,兩者只差 1 萬!
| 項目 |
油車 |
電車 |
差異 |
| 購車總價 |
90 萬 |
160 萬 |
+70 萬 ❌ |
| 月付金 |
10,784 元 |
19,777 元 |
+8,993 元 ❌ |
| 5 年燃料費 |
32 萬 |
5.5 萬 |
-26.5 萬 ✅ |
| 5 年稅金 |
5.5 萬 |
0 萬 |
-5.5 萬 ✅ |
| 5 年保養 |
8 萬 |
3 萬 |
-5 萬 ✅ |
| 5 年殘值 |
45 萬 |
80 萬 |
+35 萬 ✅ |
| 5 年淨成本 |
105.5 萬 |
106.5 萬 |
+1 萬 |
💰 結論:前面多付的,後面都省回來了(還多省 34 萬稅金+燃料費)
⚠️ 但這不代表電車比較好!
重點是:你要知道真相,再決定適不適合你
適合買電車的人:
- ✅ 有固定充電地點(家裡或公司有充電樁)
- ✅ 每天通勤里程固定(30-80 公里)
- ✅ 能負擔較高月付金(多 9,000 元/月)
- ✅ 住在市區,很少長途旅行
- ✅ 在意環保和科技感
適合買油車的人:
- ✅ 經常長途旅行(超過 300 公里)
- ✅ 沒有固定充電地點(租屋族、無車位)
- ✅ 月付金預算有限(想控制在 1.5 萬以內)
- ✅ 需要更大的後車廂空間
- ✅ 偏好傳統駕駛體驗
😱 隱藏成本:你可能沒想到的事
電車的隱藏成本
1. 充電樁安裝費(5-15 萬)
- 家用充電樁:5-8 萬
- 需要獨立電表:3-7 萬
- 公寓管委會可能不同意 ❌
2. 冬天續航力下降
- 官方宣稱 400 公里
- 冬天開暖氣:實際只有 280 公里(打 7 折)
- 夏天開冷氣:實際約 320 公里(打 8 折)
3. 快充縮短電池壽命
- 經常用快充:5 年後電池衰退 20-30%
- 只用慢充:5 年後衰退 10-15%
4. 長途旅行焦慮
- 台北到高雄:需要充電 1-2 次
- 每次快充:30-40 分鐘
- 充電站可能大排長龍(連假)
油車的隱藏成本
1. 油價波動風險
- 現在 32 元/公升
- 可能漲到 40 元/公升(+25%)
- 5 年燃油費:32 萬 → 40 萬(+8 萬)
2. 保養頻率高
- 每 5,000 公里:小保養(機油、濾心)
- 每 20,000 公里:大保養(變速箱油、煞車油)
- 每 40,000 公里:火星塞、皮帶
3. 引擎、變速箱維修費用高
- 變速箱故障:5-10 萬
- 引擎大修:10-20 萬
- 過保固後風險增加
4. 未來二手車價可能下跌
- 2030 年後可能禁售燃油車
- 二手市場需求下降
- 殘值可能低於預期
🧮 自己算算看:你的情況適合哪一種?
別信業務的話,也別信我的話。自己算最準。
立即免費試算(30 秒)→
✅ 不需註冊 ✅ 完全免費 ✅ 無業務騷擾
📈 進階分析:不同里程數的損益兩平點
如果你年行駛里程是...
年跑 10,000 公里(少開族):
- 油車 5 年燃料費:21 萬
- 電車 5 年充電費:3.7 萬
- 差異:17.3 萬 → 電車優勢不明顯
年跑 15,000 公里(平均族):
- 油車 5 年燃料費:32 萬
- 電車 5 年充電費:5.5 萬
- 差異:26.5 萬 → 電車優勢開始顯現
年跑 25,000 公里(重度使用):
- 油車 5 年燃料費:53 萬
- 電車 5 年充電費:9.2 萬
- 差異:43.8 萬 → 電車大勝(但要注意電池衰退)
年跑 30,000 公里以上(計程車、Uber):
- 油車 5 年燃料費:64 萬+
- 電車 5 年充電費:11 萬+
- 差異:53 萬+ → 電車壓倒性優勢(但可能需要更換電池)
🛠️ GoalApp 完整決策工具包
買車不是唯一的財務決策。在您準備下訂前,建議您使用以下工具,對您的整體財務健康進行一次全面的「數據審計」。
❓ 油車 vs 電車常見 Q&A
Q1: 電動車電池壽命有多久?更換費用高嗎?
A: 通常 8-10 年或 16 萬公里
- Tesla Model 3:8 年或 19.2 萬公里保固
- 超過保固期更換電池:約 20-30 萬元
- 但實際上很少需要更換(大部分車主都在保固內)
- 建議: 如果打算開超過 8 年,要把更換電池成本算進去
Q2: 台灣的充電設施普及度如何?
A: 持續成長中,但仍不如加油站方便
- 公共充電樁: 約 2,500 座(2024 年底)
- 特斯拉超充站: 約 50 站(主要在西部)
- 加油站: 約 2,500 座
結論:
- 市區:充電樁足夠
- 長途:需要事先規劃路線
- 偏鄉:充電站較少
Q3: 我家適合裝充電樁嗎?
A: 要看你的停車位條件
最適合:
- ✅ 有獨立車位(透天、別墅)
- ✅ 有獨立電表
- ✅ 管委會同意(社區大樓)
不適合:
- ❌ 租屋族(房東可能不同意)
- ❌ 機械車位(無法裝充電樁)
- ❌ 公寓沒有管委會(需全體住戶同意)
Q4: 電車保養真的比較便宜嗎?
A: 是的,但要看時間長短
前 5 年:
- 電車:幾乎免保養(只需檢查煞車、輪胎)
- 油車:定期換機油、濾心、火星塞
5-10 年:
- 電車:可能需要更換煞車來令片、避震器
- 油車:可能需要大保養(變速箱、引擎)
10 年以上:
- 電車:可能需要更換電池(大筆支出)
- 油車:引擎、變速箱老化(維修費用高)
Q5: 電車的保險比較貴嗎?
A: 是的,約貴 20-30%
原因:
- 車價較高(零件成本高)
- 維修技術門檻高
- 事故後維修費用較高
實際費用:
- 油車(90 萬):年保費約 3 萬
- 電車(160 萬):年保費約 3.6 萬
Q6: 冬天電車續航力真的會下降很多嗎?
A: 是的,可能下降 20-30%
原因:
- 電池在低溫下效率降低
- 開暖氣消耗電力(油車用引擎廢熱)
實際影響:
- 官方續航 400 公里
- 冬天實際:280-320 公里
建議:
Q7: 油價會不會一直漲?
A: 長期趨勢是上漲的
歷史數據:
- 2020 年:約 20 元/公升(疫情低點)
- 2024 年:約 32 元/公升
- 預估 2030 年:可能 40-50 元/公升
風險:
Q8: 電車的二手車價會不會很差?
A: 目前反而比油車保值
數據:
- Tesla Model 3:5 年保值率約 50%
- Toyota Corolla Altis:5 年保值率約 50%
- 豪華油車(賓士、BMW):5 年保值率約 35-40%
但未來可能改變:
🎯 最後的建議
不要問「油車好還是電車好?」
要問「我的用車習慣適合哪一種?」
評估清單:
- □ 我每天通勤距離是多少?
- □ 我一年會跑幾次長途?
- □ 我有固定充電地點嗎?
- □ 我的月付金預算是多少?
- □ 我計劃開幾年?
- □ 我在意環保嗎?
沒有絕對的答案,只有最適合你的答案。
📌 行動步驟
- 算出自己的數字 → GoalApp 油車 vs 電車計算器
- 比較 5 年總成本 → 看看差異能不能接受
- 評估充電便利性 → 家裡/公司能充電嗎?
- 做出決定 → 用數據,不用猜測
💡 為什麼用 GoalApp?
我們的承諾:
- ✅ 不收費 - 完全免費,無隱藏成本
- ✅ 不推銷 - 不會推薦你任何車款或品牌
- ✅ 不留資料 - 不需註冊,不會打電話騷擾你
- ✅ 100% 客觀 - 只給數字,決策權在你手上
記住:不猜測,只計算。
🔗 延伸閱讀
想了解更多財務決策技巧?
Sound Familiar?
❌ Salesperson says: "EVs save so much! Only NT$500 per month for electricity!"
❌ Friend says: "Gas cars are more practical! Charging EVs is such a hassle!"
❌ You think: "Which one should I buy? So conflicted..."
The Problem: They Only Tell You What Benefits Them
- EV salespeople won't tell you about charging station installation costs and battery degradation risks
- Gas car salespeople won't tell you that 5 years of fuel might exceed NT$300,000
- Your friend's experience may not match your driving habits
💡 GoalApp's Approach: No Guessing, Just Calculating
We don't promote any brand. We only give you real numbers. Today, in 5 minutes, we'll show you: Toyota Corolla Altis vs Tesla Model 3 - How much difference over 5 years?
📊 Case Study: Toyota Corolla Altis vs Tesla Model 3
Assumptions
Let's use a common scenario:
- Budget: Under NT$1.5 million
- Ownership period: 5 years
- Annual mileage: 15,000 km (average commuter)
- Gas price: NT$32/liter
- Electricity: NT$3.5/kWh (home charging)
Scenario A: Gas Car (Toyota Corolla Altis 1.8 Gasoline)
Purchase Cost:
- Car price: NT$900,000
- Down payment: NT$300,000 (33%)
- Loan: NT$600,000 (5 years, 3% annual interest)
- Monthly payment: NT$10,784
5-Year Ownership Cost Breakdown:
| Item |
Annual Cost |
5-Year Total |
| Fuel (14 km/L) |
NT$64,000 |
NT$320,000 |
| Vehicle Tax |
NT$11,000 |
NT$55,000 |
| Fuel Tax |
NT$0 |
NT$0 |
| Maintenance |
NT$16,000 |
NT$80,000 |
| Insurance |
NT$30,000 |
NT$150,000 |
| Annual Total |
NT$121,000 |
NT$605,000 |
- Purchase + Ownership Total: NT$900,000 + NT$605,000 = NT$1,505,000
- Residual Value after 5 years: ~NT$450,000 (50% retention)
- 5-Year Net Cost: NT$1,505,000 - NT$450,000 = NT$1,055,000
Scenario B: Electric Car (Tesla Model 3 Standard Range)
Purchase Cost:
- Car price: NT$1,600,000 (after government subsidy)
- Down payment: NT$500,000 (31%)
- Loan: NT$1,100,000 (5 years, 3% annual interest)
- Monthly payment: NT$19,777
5-Year Ownership Cost Breakdown:
| Item |
Annual Cost |
5-Year Total |
| Charging (6.8 km/kWh) |
NT$11,000 |
NT$55,000 |
| Vehicle Tax |
NT$0 (exempt for first 6 years) |
NT$0 |
| Fuel Tax |
NT$0 |
NT$0 |
| Maintenance |
NT$6,000 |
NT$30,000 |
| Insurance |
NT$36,000 |
NT$180,000 |
| Annual Total |
NT$53,000 |
NT$265,000 |
- Purchase + Ownership Total: NT$1,600,000 + NT$265,000 = NT$1,865,000
- Residual Value after 5 years: ~NT$800,000 (50% retention)
- 5-Year Net Cost: NT$1,865,000 - NT$800,000 = NT$1,065,000
🔍 Reality: 5-Year Net Cost Differs by Only NT$10,000!
| Item |
Gas Car |
Electric Car |
Difference |
| Purchase Price |
NT$900,000 |
NT$1,600,000 |
+NT$700,000 ❌ |
| Monthly Payment |
NT$10,784 |
NT$19,777 |
+NT$8,993 ❌ |
| 5-Year Fuel/Charging |
NT$320,000 |
NT$55,000 |
-NT$265,000 ✅ |
| 5-Year Taxes |
NT$55,000 |
NT$0 |
-NT$55,000 ✅ |
| 5-Year Maintenance |
NT$80,000 |
NT$30,000 |
-NT$50,000 ✅ |
| 5-Year Residual Value |
NT$450,000 |
NT$800,000 |
+NT$350,000 ✅ |
| 5-Year Net Cost |
NT$1,055,000 |
NT$1,065,000 |
+NT$10,000 |
💰 Conclusion: What you pay more upfront, you save later (plus save NT$340,000 in taxes + fuel)
⚠️ But This Doesn't Mean EVs Are Better!
The point is: Know the truth, then decide if it's right for you
EVs Are Good For:
- ✅ Having a fixed charging location (home or office charger)
- ✅ Fixed daily commute distance (30-80 km)
- ✅ Can afford higher monthly payments (+NT$9,000/month)
- ✅ Living in urban areas, rarely taking long trips
- ✅ Caring about environment and technology
Gas Cars Are Good For:
- ✅ Frequent long trips (over 300 km)
- ✅ No fixed charging location (renters, no parking spot)
- ✅ Limited monthly payment budget (want to stay under NT$15,000)
- ✅ Need more trunk space
- ✅ Prefer traditional driving experience
😱 Hidden Costs: Things You Might Not Have Considered
EV Hidden Costs
1. Charging Station Installation (NT$50,000-150,000)
- Home charging station: NT$50,000-80,000
- Separate electric meter: NT$30,000-70,000
- Building management may not approve ❌
2. Winter Range Reduction
- Official claim: 400 km
- Winter with heater: Actually only 280 km (30% less)
- Summer with AC: Actually ~320 km (20% less)
3. Fast Charging Shortens Battery Life
- Frequent fast charging: 20-30% degradation after 5 years
- Only slow charging: 10-15% degradation after 5 years
4. Long Trip Anxiety
- Taipei to Kaohsiung: Need to charge 1-2 times
- Each fast charge: 30-40 minutes
- Charging stations may have long lines (holidays)
Gas Car Hidden Costs
1. Fuel Price Fluctuation Risk
- Current: NT$32/liter
- May rise to NT$40/liter (+25%)
- 5-year fuel cost: NT$320,000 → NT$400,000 (+NT$80,000)
2. High Maintenance Frequency
- Every 5,000 km: Minor service (oil, filter)
- Every 20,000 km: Major service (transmission fluid, brake fluid)
- Every 40,000 km: Spark plugs, belts
3. High Engine/Transmission Repair Costs
- Transmission failure: NT$50,000-100,000
- Engine overhaul: NT$100,000-200,000
- Risk increases after warranty
4. Future Resale Value May Drop
- Gas car sales may be banned after 2030
- Used car market demand decreasing
- Residual value may be lower than expected
🧮 Calculate It Yourself: Which One Suits Your Situation?
Don't trust the salesperson. Don't trust us either. Calculate it yourself.
Free Calculator (30 seconds) →
✅ No Registration ✅ 100% Free ✅ No Sales Calls
📈 Advanced Analysis: Break-Even Points at Different Mileages
If Your Annual Mileage Is...
10,000 km/year (Low usage):
- Gas car 5-year fuel: NT$210,000
- EV 5-year charging: NT$37,000
- Difference: NT$173,000 → EV advantage not significant
15,000 km/year (Average):
- Gas car 5-year fuel: NT$320,000
- EV 5-year charging: NT$55,000
- Difference: NT$265,000 → EV advantage becomes apparent
25,000 km/year (Heavy usage):
- Gas car 5-year fuel: NT$530,000
- EV 5-year charging: NT$92,000
- Difference: NT$438,000 → EV wins big (but watch battery degradation)
30,000+ km/year (Taxi, Uber):
- Gas car 5-year fuel: NT$640,000+
- EV 5-year charging: NT$110,000+
- Difference: NT$530,000+ → EV overwhelming advantage (but may need battery replacement)
🛠️ GoalApp Complete Decision Tool Kit
Buying a car isn't your only financial decision. Before placing an order, we recommend using these tools for a comprehensive "data audit" of your overall financial health.
❓ Gas vs EV FAQ
Q1: How long do EV batteries last? Is replacement expensive?
A: Usually 8-10 years or 160,000 km
- Tesla Model 3: 8 years or 192,000 km warranty
- Battery replacement after warranty: ~NT$200,000-300,000
- But rarely needed (most owners are within warranty)
- Tip: If planning to keep over 8 years, factor in battery replacement cost
Q2: How widespread are charging facilities in Taiwan?
A: Growing, but still not as convenient as gas stations
- Public chargers: ~2,500 stations (end of 2024)
- Tesla Superchargers: ~50 stations (mainly western Taiwan)
- Gas stations: ~2,500 stations
Conclusion:
- Urban areas: Sufficient chargers
- Long trips: Need to plan routes in advance
- Rural areas: Fewer charging stations
Q3: Is my home suitable for a charging station?
A: Depends on your parking situation
Most suitable:
- ✅ Private parking (house, villa)
- ✅ Separate electric meter
- ✅ Building management approval (apartment complex)
Not suitable:
- ❌ Renters (landlord may not agree)
- ❌ Mechanical parking (can't install charger)
- ❌ Apartment without management (needs all residents' consent)
Q4: Is EV maintenance really cheaper?
A: Yes, but depends on time frame
First 5 years:
- EV: Almost maintenance-free (only check brakes, tires)
- Gas: Regular oil changes, filters, spark plugs
5-10 years:
- EV: May need brake pads, suspension replacement
- Gas: May need major service (transmission, engine)
10+ years:
- EV: May need battery replacement (major expense)
- Gas: Engine, transmission aging (high repair costs)
Q5: Is EV insurance more expensive?
A: Yes, about 20-30% more
Reasons:
- Higher car price (higher parts costs)
- Higher repair skill requirements
- Higher post-accident repair costs
Actual costs:
- Gas car (NT$900,000): Annual premium ~NT$30,000
- EV (NT$1,600,000): Annual premium ~NT$36,000
Q6: Does EV range really drop a lot in winter?
A: Yes, may drop 20-30%
Reasons:
- Battery efficiency decreases at low temperatures
- Heater consumes electricity (gas cars use engine waste heat)
Actual impact:
- Official range: 400 km
- Winter actual: 280-320 km
Tips:
- Northern Taiwan residents should pay special attention
- Allow extra charging time for long trips
Q7: Will gas prices keep rising?
A: Long-term trend is upward
Historical data:
- 2020: ~NT$20/liter (pandemic low)
- 2024: ~NT$32/liter
- 2030 estimate: May reach NT$40-50/liter
Risks:
- Geopolitics (Middle East conflicts)
- Carbon tax implementation
- Global warming policies
Q8: Will EV resale value be poor?
A: Currently actually better than gas cars
Data:
- Tesla Model 3: ~50% retention after 5 years
- Toyota Corolla Altis: ~50% retention after 5 years
- Luxury gas cars (Mercedes, BMW): ~35-40% retention after 5 years
But future may change:
- New EVs getting cheaper
- Old EV battery degradation
- Charging standard changes
🎯 Final Advice
Don't ask "Are gas cars or EVs better?"
Ask "Which suits my driving habits?"
Evaluation checklist:
- □ How far is my daily commute?
- □ How many long trips do I take per year?
- □ Do I have a fixed charging location?
- □ What's my monthly payment budget?
- □ How many years do I plan to keep it?
- □ Do I care about the environment?
There's no absolute answer, only the answer that's best for you.
📌 Action Steps
- Calculate your numbers → GoalApp Gas vs EV Calculator
- Compare 5-year total costs → See if the difference is acceptable
- Evaluate charging convenience → Can you charge at home/office?
- Make a decision → Use data, not guessing
💡 Why Use GoalApp?
Our promise:
- ✅ Free - Completely free, no hidden costs
- ✅ No sales - We won't recommend any car model or brand
- ✅ No data collection - No registration, no sales calls
- ✅ 100% Objective - Just numbers, decision is yours
Remember: No guessing, just calculating.
🔗 Further Reading
Want to learn more financial decision-making skills?