Comparison BMW 4 Series Convertible (G23) 430i (258 Hp) Steptronic & BMW 3 Series (E21) 316 (90 Hp)
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| Brand: | BMW | BMW |
| Model: | 4 Series | 3 Series |
| Generation: | 4 Series Convertible (G23) | 3 Series (E21) |
| Engine / modification: | 430i (258 Hp) Steptronic | 316 (90 Hp) |
| Production start: | 2020 year | 1975 year |
| Production end: | 1980 year | |
| Coupe type: | Cabriolet | Sedan |
| Num. of Doors: | 2 | 2 |
| Num. of seats: | 4 | 5 |
| Fuel consumption / economy - urban: | 11.1 l/100 km | |
| Fuel consumption / economy - extra urban: | 6.2 l/100 km | |
| Fuel consumption / economy - combined: | 8.3 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.28 | |
| Fuel tank volume: | 59 l | 58 l |
| Combined fuel consumption (WLTP): | 6.9-7.7 l/100 km | |
| Emission standard: | Euro 6d | |
| Power: | 258 hp | 90 hp |
| Max power in: | 5000-6500 rpm. | |
| Maximum speed: | 250 km/h | 167 km/h |
| Acceleration from 0 to 100 km/h: | 6.2 sec | 12.5 sec |
| CO2 emissions (WLTP): | 158-176 g/km | |
| Torque: | 400 Nm @ 1550-4400 rpm. | |
| Model Engine: | M10 | |
| Engine position: | Front, longitudinal | Front, longitudinal |
| Engine displacement: | 1998 cm3 | 1573 cm3 |
| Engine oil capacity: | 5.25 l | 4.0 l |
| Fuel System: | Direct injection | Carburettor |
| Position of cylinders: | Inline | Inline |
| Valvetrain: | VALVETRONIC | |
| Number of cylinders: | 4 | 4 |
| Number of valves per cylinder: | 4 | 2 |
| Compression ratio: | 10.2 | 9.1 |
| Piston Stroke: | 94.6 mm | 71 mm |
| Cylinder Bore: | 82 mm | 84 mm |
| Wheel Drive: | Rear wheel drive | |
| Number of Gears (automatic transmission): | 8 Steptronic | |
| Number of Gears (manual transmission): | 5 | |
| Length: | 4768 mm | 4355 mm |
| Width: | 1852 mm | 1610 mm |
| Width including mirrors: | 2081 mm | |
| Height: | 1384 mm | 1380 mm |
| Wheelbase: | 2851 mm | 2563 mm |
| Front track: | 1575 mm | 1366 mm |
| Rear (Back) track: | 1611 mm | 1373 mm |
| Ride height(clearance): | 124 mm | 145 mm |
| Front overhang: | 858 mm | |
| Rear overhang: | 1059 mm | |
| Minimum volume of Luggage (trunk): | 385 l | 404 l |
| Front suspension: | Double wishbone | |
| Rear suspension: | Multi-link independent | |
| Max weight: | 2200 kg | |
| Front brakes: | Ventilated discs | Disc |
| Rear brakes: | Ventilated discs | Disc |
| Kerb Weight: | 1715 kg | 1020 kg |
| Steering type: | Steering rack and pinion | |
| Power steering: | Electric Steering | |
| Minimum turning circle (turning diameter): | 11.4 m | |
| Permitted trailer load with brakes (12%): | 1600 kg | |
| Permitted trailer load without brakes: | 750 kg | |
| Permitted towbar download: | 75 kg | |
| Tire size: | 225/50 R17 98Y XL | |
| Wheel rims size: | 7.5J x 17 |