Comparison Opel Astra H Sedan 1.3 CDTI (90 Hp) & BMW Z4 (E89, facelift 2013) 20i (184 Hp) sDrive & Opel Astra J Sports Tourer 1.7 CDTI (110 Hp) ecoFLEX start/stop
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| Brand: | Opel | BMW | Opel |
| Model: | Astra | Z4 | Astra |
| Generation: | Astra H Sedan | Z4 (E89, facelift 2013) | Astra J Sports Tourer |
| Engine / modification: | 1.3 CDTI (90 Hp) | 20i (184 Hp) sDrive | 1.7 CDTI (110 Hp) ecoFLEX start/stop |
| Production start: | 2007 year | 2013 year | 2010 year |
| Production end: | 2010 year | 2016 year | 2012 year |
| Coupe type: | Sedan | Cabriolet | Combi |
| Num. of Doors: | 4 | 2 | 5 |
| Num. of seats: | 5 | 2 | 5 |
| Fuel consumption / economy - urban: | 6.5 l/100 km | 8.9 l/100 km | 4.5 l/100 km |
| Fuel consumption / economy - extra urban: | 4.3 l/100 km | 5.6 l/100 km | 3.4 l/100 km |
| Fuel consumption / economy - combined: | 5.1 l/100 km | 6.8 l/100 km | 3.7 l/100 km |
| Fuel Type: | Diesel | Petrol (Gasoline) | Diesel |
| Drag coefficient: | 0.30 | 0.34 | 0.33 |
| Fuel tank volume: | 52 l | 55 l | 56 l |
| Emission standard: | Euro 4 | Euro 6 | Euro 5 |
| CO2 emissions: | 137 g/km | 159 g/km | 99 g/km |
| Power: | 90 hp | 184 hp | 110 hp |
| Max power in: | 4000 rpm. | 5000 rpm. | 3800 rpm. |
| Maximum speed: | 172 km/h | 235 km/h | 180 km/h |
| Acceleration from 0 to 100 km/h: | 13.7 sec | 6.9 sec | 13.0 sec |
| Torque: | 200 Nm @ 1750 rpm. | 270 Nm @ 1250-4500 rpm. | 260 Nm @ 2550 rpm. |
| Model Engine: | Z13DTH | N20B20 | 17DTJ |
| Engine position: | Front, transverse | Front, longitudinal | Front, transverse |
| Engine displacement: | 1248 cm3 | 1997 cm3 | 1686 cm3 |
| Engine oil capacity: | 3.2 l | 4.75 l | 5.4 l |
| Coolant: | 8.2 l | ||
| Fuel System: | Diesel Commonrail | Direct injection | Diesel Commonrail |
| Aspiration / Turbine: | Turbo / Intercooler (Turbocharging / Intercooler) | Twin-power turbo | Turbo / Intercooler (Turbocharging / Intercooler) |
| Position of cylinders: | Inline | Inline | Inline |
| Valvetrain: | DOHC | DOHC | |
| Number of cylinders: | 4 | 4 | 4 |
| Number of valves per cylinder: | 4 | 4 | 4 |
| Compression ratio: | 18.4 | 10 | 18.4 |
| Piston Stroke: | 82 mm | 90.1 mm | 86 mm |
| Cylinder Bore: | 69.6 mm | 84 mm | 79 mm |
| Wheel Drive: | Front wheel drive | Rear wheel drive | Front wheel drive |
| Number of Gears (manual transmission): | 5 | 6 | 6 |
| Length: | 4587 mm | 4239 mm | 4698 mm |
| Width: | 1753 mm | 1790 mm | 1814 mm |
| Width with mirrors folded: | 1804 mm | ||
| Width including mirrors: | 2033 mm | 2013 mm | |
| Height: | 1458 mm | 1291 mm | 1535 mm |
| Wheelbase: | 2703 mm | 2496 mm | 2685 mm |
| Front track: | 1488 mm | 1511 mm | 1544 mm |
| Rear (Back) track: | 1479 mm | 1559 mm | 1558 mm |
| Ride height(clearance): | 170 mm | 130 mm | 109 mm |
| Front overhang: | 974 mm | ||
| Rear overhang: | 1039 mm | ||
| Minimum volume of Luggage (trunk): | 180 l | 550 l | |
| Maximum amount of Luggage (trunk): | 490 l | 310 l | 1550 l |
| Front suspension: | Independent, Spring McPherson, with stabilizer | Double wishbone | |
| Rear suspension: | One-piece beam bridge | Multi-link independent | |
| Max weight: | 1725 kg | 1960 kg | |
| Front brakes: | Ventilated discs | Ventilated discs | Ventilated discs |
| Rear brakes: | Disc | Ventilated discs | Disc |
| Kerb Weight: | 1395 kg | 1393 kg | |
| ABS: | yes | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Electric Steering | Electric Steering | |
| Minimum turning circle (turning diameter): | 11.50 m | 10.7 m | |
| Tire size: | 205 / 55 R16 | 225/45 R17 | 215/50 R17 |
| Wheel rims size: | R16 | 8J x 17 | R17 |