Comparison Aston Martin DB4 Convertible 3.7 (243 Hp) & Mazda RX 7 IV 1.3 Wankel (255 Hp)
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| Brand: | Aston Martin | Mazda |
| Model: | DB4 | RX-7 |
| Generation: | DB4 Convertible | RX 7 IV |
| Engine / modification: | 3.7 (243 Hp) | 1.3 Wankel (255 Hp) |
| Production start: | 1961 year | 2000 year |
| Production end: | 1963 year | 2002 year |
| Coupe type: | Cabriolet | Coupe |
| Num. of Doors: | 2 | 2 |
| Num. of seats: | 4 | 2+2 |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Fuel tank volume: | 76 l | |
| Power: | 243 hp | 255 hp |
| Max power in: | 5000 rpm. | 6500 rpm. |
| Maximum speed: | 225 km/h | 250 km/h |
| Torque: | 325 Nm/4200 rpm. | 294 Nm @ 5000 rpm. |
| Engine position: | Front, longitudinal | Front, longitudinal |
| Engine displacement: | 3670 cm3 | 1308 cm3 |
| Fuel System: | Carburettor | Multi-point injection |
| Position of cylinders: | Inline | Rotary (Wankel) |
| Valvetrain: | DOHC | - |
| Number of cylinders: | 6 | 4 |
| Compression ratio: | 8.25 | 9.1 |
| Piston Stroke: | 92 mm | |
| Cylinder Bore: | 92 mm | |
| Wheel Drive: | Rear wheel drive | |
| Number of Gears (automatic transmission): | 4 | |
| Number of Gears (manual transmission): | 4 | |
| Length: | 4480 mm | 4285 mm |
| Width: | 1676 mm | 1760 mm |
| Height: | 1323 mm | 1230 mm |
| Wheelbase: | 2490 mm | 2425 mm |
| Front track: | 1372 mm | 1460 mm |
| Rear (Back) track: | 1360 mm | 1460 mm |
| Ride height(clearance): | 177 mm | |
| Front suspension: | Double wishbone | Double wishbone |
| Rear suspension: | dependent spring suspension | Helical spring |
| Max weight: | 1490 kg | |
| Front brakes: | Disc | Ventilated discs |
| Rear brakes: | Disc | Ventilated discs |
| Kerb Weight: | 1308 kg | 1240 kg |
| ABS: | yes | |
| Steering type: | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Hydraulic Steering | |
| Minimum turning circle (turning diameter): | 10.3 m | |
| Tire size: | 225/50 R16 | |
| Wheel rims size: | R16 |