Comparison BMW Z4 (E89, facelift 2013) 18i (156 Hp) sDrive & Mercedes-Benz C-class Cabriolet (A205) C 180 (156 Hp) & Mercedes-Benz A-class (W176 facelift 2015) A 180d (109 Hp) DCT
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| Brand: | BMW | Mercedes-Benz | Mercedes-Benz |
| Model: | Z4 | C-class | A-class |
| Generation: | Z4 (E89, facelift 2013) | C-class Cabriolet (A205) | A-class (W176 facelift 2015) |
| Engine / modification: | 18i (156 Hp) sDrive | C 180 (156 Hp) | A 180d (109 Hp) DCT |
| Production start: | 2013 year | 2016 year | 2015 year |
| Production end: | 2016 year | ||
| Coupe type: | Cabriolet | Cabriolet | Hatchback |
| Num. of Doors: | 2 | 2 | 5 |
| Num. of seats: | 2 | 4 | 5 |
| Fuel consumption / economy - urban: | 8.9 l/100 km | 7.8-7.6 l/100 km | 4.3-4.2 l/100 km |
| Fuel consumption / economy - extra urban: | 5.6 l/100 km | 5.4-5.1 l/100 km | 3.7-3.4 l/100 km |
| Fuel consumption / economy - combined: | 6.8 l/100 km | 6.3-6.0 l/100 km | 3.9-3.7 l/100 km |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) | Diesel |
| Drag coefficient: | 0.34 | 0.31 | 0.28 |
| Fuel tank volume: | 55 l | 41 l | 50 l |
| AdBlue tank: | 50 l | ||
| Emission standard: | Euro 6 | EURO VI | EURO VI |
| CO2 emissions: | 159 g/km | 143-135 g/km | 104-98 g/km |
| Power: | 156 hp | 156 hp | 109 hp |
| Max power in: | 5000 rpm. | 5300 rpm. | 4000 rpm. |
| Maximum speed: | 221 km/h | 190 km/h | |
| Acceleration from 0 to 100 km/h: | 7.9 sec | 8.9 sec | 11.3 sec |
| Torque: | 240 Nm @ 1250-4400 rpm. | 250 Nm/1200-4000 rpm. | 260 Nm/1750-2500 rpm. |
| Model Engine: | N20B20 | ||
| Engine position: | Front, longitudinal | Front, longitudinal | Front, transverse |
| Engine displacement: | 1997 cm3 | 1595 cm3 | 1461 cm3 |
| Engine oil capacity: | 4.75 l | ||
| Coolant: | 8.2 l | ||
| Fuel System: | Direct injection | Direct injection | Diesel Commonrail |
| Aspiration / Turbine: | Twin-power turbo | Turbocharging | Turbo / Intercooler (Turbocharging / Intercooler) |
| Position of cylinders: | Inline | Inline | Inline |
| Number of cylinders: | 4 | 4 | 4 |
| Number of valves per cylinder: | 4 | 4 | |
| Compression ratio: | 10 | 10.3 | 16 |
| Piston Stroke: | 90.1 mm | ||
| Cylinder Bore: | 84 mm | ||
| Wheel Drive: | Rear wheel drive | Rear wheel drive | Front wheel drive |
| Number of Gears (automatic transmission): | 7 G-DCT | ||
| Number of Gears (manual transmission): | 6 | 6 | |
| Length: | 4239 mm | 4686 mm | 4299 mm |
| Width: | 1790 mm | 1810 mm | 1780 mm |
| Width including mirrors: | 2016 mm | 2022 mm | |
| Height: | 1291 mm | 1409 mm | 1433 mm |
| Wheelbase: | 2496 mm | 2840 mm | 2699 mm |
| Front track: | 1511 mm | 1563 mm | 1553 mm |
| Rear (Back) track: | 1562 mm | 1546 mm | 1552 mm |
| Ride height(clearance): | 130 mm | 93 mm | |
| Approach angle: | 13.7 ° | ||
| Departure angle: | 17.3 ° | ||
| Ramp angle: | 9.3 ° | ||
| Front overhang: | 790 mm | 913 mm | |
| Rear overhang: | 1056 mm | 687 mm | |
| Minimum volume of Luggage (trunk): | 180 l | 285 l | 341 l |
| Maximum amount of Luggage (trunk): | 310 l | 360 l | 1157 l |
| Front suspension: | Double wishbone | Multi-link suspension | Independent type McPherson |
| Rear suspension: | Multi-link independent | Multi-link independent | Multi-link independent |
| Max weight: | 1725 kg | 2080 kg | 1960 kg |
| Front brakes: | Ventilated discs | Ventilated discs | Ventilated discs |
| Rear brakes: | Ventilated discs | Disc | Disc |
| Kerb Weight: | 1395 kg | 1600 kg | 1350 kg |
| ABS: | yes | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Electric Steering | Electric Steering | Electric Steering |
| Max. roof load: | 100 kg | ||
| Minimum turning circle (turning diameter): | 10.7 m | 11.22 m | 11.00 m |
| Permitted trailer load with brakes (12%): | 1400 kg | 1200 kg | |
| Permitted trailer load without brakes: | 750 kg | 710 kg | |
| Tire size: | 225/45 R17 | 225/50 R17 | 195/65 R15 |
| Wheel rims size: | 8J x 17 | R17 | R15 |