Comparison Acura RDX III (facelift 2021) 2.0 (272 Hp) Automatic & Opel Astra G Cabrio 1.6 16V (101 Hp) & Opel Astra G Cabrio 2.0i 16V Turbo (192 Hp)
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| Brand: | Acura | Opel | Opel |
| Model: | RDX | Astra | Astra |
| Generation: | RDX III (facelift 2021) | Astra G Cabrio | Astra G Cabrio |
| Engine / modification: | 2.0 (272 Hp) Automatic | 1.6 16V (101 Hp) | 2.0i 16V Turbo (192 Hp) |
| Production start: | 2021 year | 2001 year | 2002 year |
| Production end: | 2002 year | 2003 year | |
| Coupe type: | SUV | Cabriolet | Cabriolet |
| Num. of Doors: | 5 | 2 | 2 |
| Num. of seats: | 5 | 4 | 4 |
| Fuel consumption / economy - urban: | 10.7 l/100 km | 9.9 l/100 km | 12.5 l/100 km |
| Fuel consumption / economy - extra urban: | 8.4 l/100 km | 5.6 l/100 km | 6.8 l/100 km |
| Fuel consumption / economy - combined: | 9.8 l/100 km | 7.2 l/100 km | 8.9 l/100 km |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.30 | 0.32 | |
| Fuel tank volume: | 65 l | 52 l | 52 l |
| Emission standard: | ULEV-50 | Euro 3 | |
| CO2 emissions: | 175 g/km | 214 g/km | |
| Power: | 272 hp | 101 hp | 192 hp |
| Max power in: | 6500 rpm. | 6000 rpm. | 5400 rpm. |
| Maximum speed: | 190 km/h | 242 km/h | |
| Acceleration from 0 to 100 km/h: | 13 sec | 8 sec | |
| Torque: | 380 Nm @ 1600-4500 rpm. | 150 Nm @ 3600 rpm. | 250 Nm @ 1950-5300 rpm. |
| Model Engine: | K20C4 | Z16XE | Z20LET |
| Engine position: | Front, transverse | Front, transverse | |
| Engine displacement: | 1996 cm3 | 1598 cm3 | 1998 cm3 |
| Engine oil capacity: | 4.8 l | 3.25 l | 4.25 l |
| Coolant: | 5.5 l | 6.3 l | 7.4 l |
| Fuel System: | Direct injection | Multi-point injection | Multi-point injection |
| Aspiration / Turbine: | Turbocharging | ||
| Position of cylinders: | Inline | Inline | Inline |
| Valvetrain: | DOHC, VTEC | DOHC | DOHC |
| Number of cylinders: | 4 | 4 | 4 |
| Number of valves per cylinder: | 4 | 4 | 4 |
| Compression ratio: | 9.8 | 10.5 | 8.8 |
| Piston Stroke: | 85.9 mm | 81.5 mm | 86 mm |
| Cylinder Bore: | 86 mm | 79 mm | 86 mm |
| Wheel Drive: | Front wheel drive | Front wheel drive | Front wheel drive |
| Number of Gears (automatic transmission): | 10 | - | - |
| Number of Gears (manual transmission): | 5 | 5 | |
| Length: | 4760 mm | 4267 mm | 4267 mm |
| Width: | 1900 mm | 1709 mm | 1709 mm |
| Width including mirrors: | 1989 mm | 1989 mm | |
| Height: | 1669 mm | 1390 mm | 1390 mm |
| Wheelbase: | 2751 mm | 2606 mm | 2606 mm |
| Front track: | 1631 mm | 1474 mm | 1467 mm |
| Rear (Back) track: | 1643 mm | 1462 mm | 1456 mm |
| Ride height(clearance): | 130 mm | 130 mm | |
| Front overhang: | 812 mm | 812 mm | |
| Rear overhang: | 849 mm | 849 mm | |
| Minimum volume of Luggage (trunk): | 835 l | 330 l | 330 l |
| Maximum amount of Luggage (trunk): | 2260 l | 1100 l | 1100 l |
| Front suspension: | Independent, Spring McPherson, with stabilizer | Independent, Spring McPherson, with stabilizer | |
| Rear suspension: | Helical spring | Helical spring | |
| Max weight: | 1695 kg | 1835 kg | |
| Front brakes: | Ventilated discs | Ventilated discs | |
| Rear brakes: | Disc | Disc | |
| Kerb Weight: | 1718 kg | 1275 kg | 1415 kg |
| ABS: | yes | yes | |
| Steering type: | Steering rack and pinion | Steering rack and pinion | |
| Power steering: | Electric Steering | Hydraulic Steering | Hydraulic Steering |
| Minimum turning circle (turning diameter): | 11.9 m | 11 m | 11 m |
| Permitted trailer load with brakes (12%): | 680 kg | ||
| Tire size: | 235/55 R19 | 195/60 R15 H | 215/40 R17 |
| Wheel rims size: | 8J x 19 | 6.5J x 15 | 7.5J x 17 |