Comparison Alpina D4 Cabrio (facelift, 2017) 3.0d (350 Hp) Switch-Tronic & Maserati Quattroporte VI (M156) GTS 3.8 V8 (530 Hp) Automatic & Mitsuoka Rock Star 1.5 SKYACTIV-G (132 Hp)
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| Brand: | Alpina | Maserati | Mitsuoka |
| Model: | D4 | Quattroporte | Rock Star |
| Generation: | D4 Cabrio (facelift, 2017) | Quattroporte VI (M156) | Rock Star |
| Engine / modification: | 3.0d (350 Hp) Switch-Tronic | GTS 3.8 V8 (530 Hp) Automatic | 1.5 SKYACTIV-G (132 Hp) |
| Production start: | 2017 year | 2013 year | 2018 year |
| Production end: | 2016 year | ||
| Coupe type: | Cabriolet | Sedan | Roadster |
| Num. of Doors: | 2 | 4 | 2 |
| Num. of seats: | 4 | 5 | 2 |
| Fuel consumption / economy - urban: | 6.6 l/100 km | 15.6 l/100 km | |
| Fuel consumption / economy - extra urban: | 5.5 l/100 km | 7.9 l/100 km | |
| Fuel consumption / economy - combined: | 5.9 l/100 km | 10.7 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) |
| Fuel tank volume: | 57 l | 80 l | 40 l |
| Emission standard: | EURO VI | ||
| CO2 emissions: | 155 g/km | 250 g/km | |
| Power: | 350 hp | 530 hp | 132 hp |
| Max power in: | 4000 rpm. | 6500-6800 rpm. | 7000 rpm. |
| Maximum speed: | 275 km/h | 307 km/h | |
| Acceleration from 0 to 100 km/h: | 5 sec | 4.7 sec | |
| Torque: | 700 Nm @ 1500-3000 rpm. | 650 Nm/2000-4000[710 rpm. / 2250-3500] Nm | 152 Nm @ 4500 rpm. |
| Engine position: | Front, longitudinal | Front, longitudinal | |
| Engine displacement: | 2993 cm3 | 3799 cm3 | 1496 cm3 |
| Fuel System: | Diesel Commonrail | Direct injection | Direct injection |
| Aspiration / Turbine: | BiTurbo | BiTurbo | |
| Position of cylinders: | Inline | V engine | Inline |
| Valvetrain: | DOHC, VVT | ||
| Number of cylinders: | 6 | 8 | 4 |
| Number of valves per cylinder: | 4 | 4 | |
| Compression ratio: | 16.5 | 9.5 | 13 |
| Piston Stroke: | 90 mm | 80.8 mm | 85.8 mm |
| Cylinder Bore: | 84 mm | 86.5 mm | 74.5 mm |
| Wheel Drive: | Rear wheel drive | Rear wheel drive | Rear wheel drive |
| Number of Gears (automatic transmission): | 8 Switch Tronic | 8 | |
| Number of Gears (manual transmission): | 6 | ||
| Length: | 4640 mm | 5262 mm | 4345 mm |
| Width: | 1825 mm | 1948 mm | 1770 mm |
| Width including mirrors: | 2100 mm | ||
| Height: | 1378 mm | 1481 mm | 1235 mm |
| Wheelbase: | 2810 mm | 3171 mm | 2310 mm |
| Front track: | 1552 mm | 1634 mm | 1495 mm |
| Rear (Back) track: | 1576 mm | 1647 mm | 1505 mm |
| Ride height(clearance): | 140 mm | ||
| Front overhang: | 954 mm | ||
| Rear overhang: | 1081 mm | ||
| Minimum volume of Luggage (trunk): | 530 l | ||
| Maximum amount of Luggage (trunk): | 220-370 l | ||
| Front suspension: | Double wishbone | ||
| Rear suspension: | Multi-link independent | ||
| Max weight: | 2265 kg | ||
| Front brakes: | Ventilated discs | Ventilated discs | Ventilated discs |
| Rear brakes: | Ventilated discs | Ventilated discs | Disc |
| Kerb Weight: | 1815 kg | 1900 kg | 1080-1120 kg |
| ABS: | yes | yes | |
| Steering type: | Steering rack and pinion | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Electric Steering | Electric Steering | Electric Steering |
| Minimum turning circle (turning diameter): | 9.4 m | ||
| Permitted trailer load with brakes (12%): | 1800 kg | ||
| Permitted trailer load without brakes: | 750 kg | ||
| Tire size: | Front wheel tires: 245/35 ZR19 | 245/40 R20; 285/35 R20 | 195/50 R16 84V |
| Wheel rims size: | Front wheel rims: 8J x 19 | R20 | 6.5J x 16 |