Comparison Aston Martin DB4 3.7 (243 Hp) & TVR 420 Sports Saloon 4.2 (269 Hp) & Wiesmann GT MF4 4.4 V8 (407 Hp) Automatic
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| Brand: | Aston Martin | TVR | Wiesmann |
| Model: | DB4 | 420 | GT |
| Generation: | DB4 | 420 Sports Saloon | GT MF4 |
| Engine / modification: | 3.7 (243 Hp) | 4.2 (269 Hp) | 4.4 V8 (407 Hp) Automatic |
| Production start: | 1958 year | 1985 year | 2003 year |
| Production end: | 1963 year | 1989 year | 2014 year |
| Coupe type: | Sedan | Coupe | |
| Num. of Doors: | 2 | 2 | |
| Num. of seats: | 4 | 2 | |
| Fuel consumption / economy - urban: | 17.2 l/100 km | ||
| Fuel consumption / economy - extra urban: | 9.4 l/100 km | ||
| Fuel consumption / economy - combined: | 12.3 l/100 km | ||
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) |
| Fuel tank volume: | 70 l | ||
| Emission standard: | Euro 5 | ||
| CO2 emissions: | 285 g/km | ||
| Power: | 243 hp | 269 hp | 407 hp |
| Max power in: | 5000 rpm. | 5500-6400 rpm. | |
| Maximum speed: | 225 km/h | 291 km/h | |
| Acceleration from 0 to 100 km/h: | 4.6 sec | ||
| Torque: | 325 Nm/4200 rpm. | 600 Nm @ 1750-4500 rpm. | |
| Engine position: | Front, longitudinal | Front, longitudinal | |
| Engine displacement: | 3670 cm3 | 4395 cm3 | |
| Fuel System: | Carburettor | ||
| Aspiration / Turbine: | Twin-Turbo | ||
| Position of cylinders: | Inline | V engine | |
| Valvetrain: | DOHC | ||
| Number of cylinders: | 6 | 8 | |
| Compression ratio: | 8.25 | 10 | |
| Piston Stroke: | 92 mm | 88.3 mm | |
| Cylinder Bore: | 92 mm | 89 mm | |
| Wheel Drive: | Rear wheel drive | ||
| Number of Gears (automatic transmission): | 6 | ||
| Number of Gears (manual transmission): | 4 | ||
| Length: | 4480 mm | 4230 mm | |
| Width: | 1676 mm | 1880 mm | |
| Height: | 1321 mm | 1190 mm | |
| Wheelbase: | 2490 mm | 2507 mm | |
| Front track: | 1372 mm | ||
| Rear (Back) track: | 1360 mm | ||
| Ride height(clearance): | 177 mm | ||
| Front suspension: | Double wishbone | Double wishbone | |
| Rear suspension: | dependent spring suspension | Double wishbone | |
| Max weight: | 1660 kg | ||
| Front brakes: | Disc | Ventilated discs | |
| Rear brakes: | Disc | ||
| Kerb Weight: | 1308 kg | 1455 kg | |
| ABS: | yes | ||
| Steering type: | Steering rack and pinion | ||
| Minimum turning circle (turning diameter): | 10.3 m | ||
| Tire size: | 245/45 R18 | ||
| Wheel rims size: | 8J x 18 |