BMW Z4 sDrive20i
Convertible · Gasoline · RWD
vs
Mercedes-Benz SL 400
Convertible · Gasoline
BMW Z4 sDrive20i
Car A
BMW Z4 sDrive20i
The BMW Z4 sDrive20i blends two-seat roadster fun with efficient running and a price that reads as good value in its segment. Best for city drives and weekend trips, it trades practicality and outright pace for balance and usability.
2 seatsConvertibleGasoline5-star safety6.5 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 33 / 27
City 41 / 21
Budget / value 56 / 22
Road trip 38 / 52
Performance 43 / 39
Cargo 7 / 12
Practical 25 / 15
Premium 49 / 68
Winter 34 / 30

Scores out of 100. Blue = BMW Z4 sDrive20i · Orange = Mercedes-Benz SL 400

Specs side-by-side

Spec BMW Z4 sDrive20i Mercedes-Benz SL 400
Values are representative — confirm for your market and trim.

Pros & cons

BMW Z4 sDrive20i

  • Good value in its segment at 49,000
  • Efficient for its class with 6.5 L/100 km combined
  • RWD balance and 0–100 km/h in 6.6 s deliver confident everyday performance
  • Strong safety standing based on ranking signals

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 sDrive20i if…
Best fuel economy
BMW Z4 sDrive20i uses 6.5 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 197 — meaningfully quicker and more confident on motorways.

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