Comparison Mazda Roadster (NB) 1.8 i (146 Hp) & Opel Astra G Cabrio 2.2 Ecotec 16V (147 Hp) & Audi A4 (B8 8K, facelift 2011) 2.0 TDI (177 Hp) & Chrysler Neon II 2.0 16V (133 Hp)
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| Brand: | Mazda | Opel | Audi | Chrysler |
| Model: | Roadster | Astra | A4 | Neon |
| Generation: | Roadster (NB) | Astra G Cabrio | A4 (B8 8K, facelift 2011) | Neon II |
| Engine / modification: | 1.8 i (146 Hp) | 2.2 Ecotec 16V (147 Hp) | 2.0 TDI (177 Hp) | 2.0 16V (133 Hp) |
| Production start: | 1998 year | 2001 year | 2011 year | 1999 year |
| Production end: | 2005 year | 2005 year | 2015 year | 2005 year |
| Coupe type: | Roadster | Cabriolet | Sedan | Sedan |
| Num. of Doors: | 2 | 2 | 4 | 4 |
| Num. of seats: | 2 | 4 | 5 | 5 |
| Fuel consumption / economy - urban: | 11.8 l/100 km | 5.5 l/100 km | 11.1 l/100 km | |
| Fuel consumption / economy - extra urban: | 6.1 l/100 km | 4.1 l/100 km | 6.3 l/100 km | |
| Fuel consumption / economy - combined: | 8.2 l/100 km | 4.6 l/100 km | 8 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) | Diesel | Petrol (Gasoline) |
| Drag coefficient: | 0.30 | 0.28 | ||
| Fuel tank volume: | 48 l | 52 l | 63 l | 47 l |
| Emission standard: | Euro 4 | Euro 5 | ||
| CO2 emissions: | 197 g/km | 120 g/km | ||
| Power: | 146 hp | 147 hp | 177 hp | 133 hp |
| Max power in: | 7000 rpm. | 5800 rpm. | 4200 rpm. | 6000 rpm. |
| Maximum speed: | 216 km/h | 230 km/h | 200 km/h | |
| Acceleration from 0 to 100 km/h: | 9.5 sec | 8.2 sec | 9 sec | |
| Torque: | 168 Nm @ 5000 rpm. | 203 Nm @ 4000 rpm. | 380 Nm @ 1750-2500 rpm. | 175 Nm @ 5000 rpm. |
| Model Engine: | Z22SE | CGLC, CMGB | ||
| Engine position: | Front, longitudinal | Front, transverse | Front, longitudinal | Front, transverse |
| Engine displacement: | 1840 cm3 | 2198 cm3 | 1968 cm3 | 1996 cm3 |
| Engine oil capacity: | 5 l | 5.0 l | ||
| Coolant: | 6.8 l | |||
| Fuel System: | Multi-point injection | Multi-point injection | Diesel Commonrail | Multi-point injection |
| Aspiration / Turbine: | Turbo / Intercooler (Turbocharging / Intercooler) | |||
| Position of cylinders: | Inline | Inline | Inline | Inline |
| Valvetrain: | DOHC | DOHC | DOHC | SOHC |
| Number of cylinders: | 4 | 4 | 4 | 4 |
| Number of valves per cylinder: | 4 | 4 | 4 | 4 |
| Compression ratio: | 10 | 10 | 16.5 | 9.8 |
| Piston Stroke: | 85 mm | 94.6 mm | 95.5 mm | 83 mm |
| Cylinder Bore: | 83 mm | 86 mm | 81 mm | 87.5 mm |
| Wheel Drive: | Rear wheel drive | Front wheel drive | Front wheel drive | Front wheel drive |
| Number of Gears (manual transmission): | 5 | 5 | 6 | 5 |
| Length: | 3955 mm | 4267 mm | 4701 mm | 4390 mm |
| Width: | 1680 mm | 1709 mm | 1826 mm | 1715 mm |
| Width including mirrors: | 1989 mm | 2040 mm | ||
| Height: | 1235 mm | 1390 mm | 1427 mm | 1421 mm |
| Wheelbase: | 2265 mm | 2606 mm | 2808 mm | 2667 mm |
| Front track: | 1405 mm | 1474 mm | 1564 mm | 1474 mm |
| Rear (Back) track: | 1430 mm | 1462 mm | 1551 mm | 1472 mm |
| Front overhang: | 812 mm | 862 mm | ||
| Rear overhang: | 849 mm | 1031 mm | ||
| Minimum volume of Luggage (trunk): | 330 l | 480 l | 370 l | |
| Maximum amount of Luggage (trunk): | 962 l | |||
| Front suspension: | Independent, Spring McPherson, with stabilizer | Multi-link suspension | Independent type McPherson | |
| Rear suspension: | Semi-independent, spring | Independent on trapezoidal lever | Multi-link independent | |
| Max weight: | 1765 kg | 2030 kg | 1650 kg | |
| Front brakes: | Ventilated discs | Ventilated discs | Ventilated discs | Ventilated discs |
| Rear brakes: | Disc | Disc | Disc | Disc |
| Kerb Weight: | 1010 kg | 1318 kg | 1480 kg | 1245 kg |
| ABS: | yes | yes | yes | |
| Steering type: | Steering rack and pinion | Steering rack and pinion | Steering rack and pinion | |
| Power steering: | Hydraulic Steering | Electric Steering | Hydraulic Steering | |
| Max. roof load: | 90 kg | |||
| Permitted trailer load with brakes (8%): | 1800 kg | |||
| Minimum turning circle (turning diameter): | 11 m | 11.5 m | ||
| Permitted trailer load with brakes (12%): | 1600 kg | |||
| Permitted trailer load without brakes: | 750 kg | |||
| Permitted towbar download: | 80 kg | |||
| Tire size: | 185/60 R14 | 215/40 R17 | 225/55 R16 | 185/60 R15 |
| Wheel rims size: | R14 | 7.5J x 17 | 7.5J x 16 |