Comparison BMW 4 Series Convertible (G23) 420i (184 Hp) Steptronic & Tata Tigor 1.05d (70 Hp)
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| Brand: | BMW | Tata |
| Model: | 4 Series | Tigor |
| Generation: | 4 Series Convertible (G23) | Tigor |
| Engine / modification: | 420i (184 Hp) Steptronic | 1.05d (70 Hp) |
| Production start: | 2020 year | 2017 year |
| Coupe type: | Cabriolet | Sedan |
| Num. of Doors: | 2 | 4 |
| Num. of seats: | 4 | 5 |
| Fuel Type: | Petrol (Gasoline) | Diesel |
| Drag coefficient: | 0.28 | |
| Fuel tank volume: | 59 l | 35 l |
| Combined fuel consumption (WLTP): | 6.7-7.4 l/100 km | |
| Emission standard: | Euro 6d | |
| Power: | 184 hp | 70 hp |
| Max power in: | 5000-6500 rpm. | 4000 rpm. |
| Maximum speed: | 236 km/h | 150 km/h |
| Acceleration from 0 to 100 km/h: | 8.2 sec | |
| CO2 emissions (WLTP): | 152-169 g/km | |
| Torque: | 300 Nm @ 1350-4000 rpm. | 140 Nm @ 1800-3000 rpm. |
| Engine position: | Front, longitudinal | Front, transverse |
| Engine displacement: | 1998 cm3 | 1047 cm3 |
| Engine oil capacity: | 5.25 l | |
| Fuel System: | Direct injection | Diesel Commonrail |
| Aspiration / Turbine: | Turbocharger / Intercooler | |
| Position of cylinders: | Inline | Inline |
| Valvetrain: | VALVETRONIC | DOHC |
| Number of cylinders: | 4 | 3 |
| Number of valves per cylinder: | 4 | 4 |
| Compression ratio: | 11 | |
| Piston Stroke: | 94.6 mm | |
| Cylinder Bore: | 82 mm | |
| Wheel Drive: | Rear wheel drive | Front wheel drive |
| Number of Gears (automatic transmission): | 8 Steptronic | |
| Number of Gears (manual transmission): | 5 | |
| Length: | 4768 mm | 3992 mm |
| Width: | 1852 mm | 1677 mm |
| Width including mirrors: | 2081 mm | |
| Height: | 1384 mm | 1537 mm |
| Wheelbase: | 2851 mm | 2450 mm |
| Front track: | 1575 mm | 1400 mm |
| Rear (Back) track: | 1611 mm | 1420 mm |
| Ride height(clearance): | 124 mm | 165 mm |
| Front overhang: | 858 mm | 792 mm |
| Rear overhang: | 1059 mm | 750 mm |
| Minimum volume of Luggage (trunk): | 385 l | |
| Front suspension: | Double wishbone | Independent, Spring McPherson, with stabilizer |
| Rear suspension: | Multi-link independent | Semi-independent, spring |
| Max weight: | 2185 kg | 1485-1530 kg |
| Front brakes: | Ventilated discs | Disc |
| Rear brakes: | Ventilated discs | Drum |
| Kerb Weight: | 1690 kg | 1085-1130 kg |
| ABS: | yes | |
| Steering type: | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Electric Steering | Electric Steering |
| Minimum turning circle (turning diameter): | 11.4 m | 10.0-10.6 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 | 155/80 R13; 175/65 R14 |
| Wheel rims size: | 7.5J x 17 | 4.5J x 13; 5J x 14 |