BMW i4 vs Mercedes-Benz C-Class
2 head-to-heads across the 2025 and 2026 model years, side by side. At default weights the record is level, 1–1. Each verdict below is the one its own page prints — price, fuel, safety, space, performance, tech and warranty from EPA, NHTSA and manufacturer data — and the weights are yours to change on any of them.
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Year by year
2 head-to-heads · verdicts at default weightsClear win 6+ points · Edge 2–6 · Toss-up under 2
Across the years, category by category
2 scored head-to-headsThe i4 leads on fuel & range in 2 of 2, performance in 1 of 2; the C-Class on price in 1 of 1, safety in 2 of 2, tech & comfort in 1 of 1. Category scores are 0–100 from the data on each pair page; a lead here means that model year scored higher in the category, whatever the weights.
| Category | i4 leads | C-Class leads | Level |
|---|---|---|---|
| Price | 0 | 1 | 0 |
| Fuel & range | 2 | 0 | 0 |
| Safety | 0 | 2 | 0 |
| Performance | 1 | 0 | 1 |
| Tech & comfort | 0 | 1 | 0 |
Common questions about the i4 vs C-Class
Source: EPA, NHTSA and manufacturer press kitsWhich is better, the BMW i4 or the Mercedes-Benz C-Class?
In the newest scored pairing, the 2026 i4 against the 2026 C-Class: The Mercedes-Benz C-Class edges it, 79.7 to 74.3, on tech & comfort, price, safety. The BMW i4 is ahead on fuel & range and performance. Raise the fuel & range weight from 3 to 4.2 and it flips. Across the 2 head-to-heads scored, the record is level, 1–1. Open the 2026 pair to change the weights.
Does the answer change from one model year to the next?
Yes. At default weights the verdict went 2026 i4 vs 2026 C-Class: C-Class; 2025 i4 vs 2025 C-Class: i4. The weights on each pair page say what tips it.
Where is the biggest difference between the BMW i4 and the Mercedes-Benz C-Class?
The i4 leads on fuel & range in 2 of 2, performance in 1 of 2; the C-Class on price in 1 of 1, safety in 2 of 2, tech & comfort in 1 of 1. Every count comes from the category scores on the pair pages linked above, which use EPA, NHTSA and manufacturer press-kit data.
How does WhichTrim decide which vehicle wins?
Each of seven categories — price, fuel and range, safety, space and cargo, performance, tech and comfort, warranty — is scored 0–100 from the data on the page. Relative measures give 100 to the better vehicle and a proportional share to the other; NHTSA stars and the Safety Signal use their own scales. The overall score is the weighted mean at the default weights (price 4, safety 4, fuel 3, tech 3, space 2, performance 2, warranty 2). A margin of 6 points or more is a clear win, 2 to 6 an edge, under 2 a toss-up. Every pair page has sliders to change the weights.