BMW Z4 sDrive30i
Convertible · Gasoline · RWD
vs
Mercedes-Benz SL 400
Convertible · Gasoline
BMW Z4 sDrive30i
Car A
BMW Z4 sDrive30i
The BMW Z4 sDrive30i is a two-seat RWD roadster that blends brisk acceleration with efficient running and good value in its segment. Best for city driving and weekend escapes rather than cargo-heavy duty.
2 seatsConvertibleGasoline5-star safety6.8 L/100km
Mercedes-Benz SL 400
Car B
Mercedes-Benz SL 400
The Mercedes-Benz SL 400 focuses on premium, two-seat touring with strong performance from a 333 hp V6 and swift 0–100 km/h in 5.2 s. It favors power and road-trip usability over family practicality.
2 seatsConvertibleGasoline5-star safety333 hp
Why compared same body typesame powertrainsame seatssecondary usage match

Usage fit

Family 34 / 27
City 41 / 21
Budget / value 58 / 22
Road trip 38 / 52
Performance 44 / 39
Cargo 7 / 12
Practical 27 / 15
Premium 51 / 68
Winter 34 / 30

Scores out of 100. Blue = BMW Z4 sDrive30i · Orange = Mercedes-Benz SL 400

Specs side-by-side

Spec BMW Z4 sDrive30i Mercedes-Benz SL 400
Values are representative — confirm for your market and trim.

Pros & cons

BMW Z4 sDrive30i

  • Strong reliability and safety rankings
  • Brisk 0-100 km/h in 5.4 s from 258 hp and 400 Nm
  • Efficient for its class at 6.8 L/100 km for daily use
  • Good value in its segment at a 49,500 price point

Mercedes-Benz SL 400

  • Strong performance from a 333 hp V6 with 5.2 s 0–100 km/h
  • Suited to premium and road-trip use, with a 355 L trunk for weekend bags
  • Efficient for its class with 7.3 combined consumption
  • Strong safety ranking within its set

Verdict

Pick BMW Z4 sDrive30i if…
Best fuel economy
BMW Z4 sDrive30i uses 6.8 L/100km vs 7.3 — a meaningful saving if you cover high mileage.
Pick Mercedes-Benz SL 400 if…
More power
Mercedes-Benz SL 400 puts out 333 hp vs 258 — meaningfully quicker and more confident on motorways.

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