Comparison Oldsmobile Achieva Coupe 2.3 i (117 Hp) Automatic & Buick Envision (facelift 2018) 20T (169 Hp) AWD DCG & Buick Encore I (facelift 2017) 1.4 (155 Hp) Start/Stop Automatic & Buick Riviera 3.8 i V6 (208 Hp)
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| Brand: | Oldsmobile | Buick | Buick | Buick |
| Model: | Achieva | Envision | Encore | Riviera |
| Generation: | Achieva Coupe | Envision (facelift 2018) | Encore I (facelift 2017) | Riviera |
| Engine / modification: | 2.3 i (117 Hp) Automatic | 20T (169 Hp) AWD DCG | 1.4 (155 Hp) Start/Stop Automatic | 3.8 i V6 (208 Hp) |
| Production start: | 1991 year | 2018 year | 2017 year | 1994 year |
| Production end: | 1993 year | 2019 year | 1997 year | |
| Coupe type: | Coupe | SUV | SUV | Coupe |
| Num. of Doors: | 2 | 5 | 5 | 2 |
| Num. of seats: | 5 | 5 | 5 | 5 |
| Fuel consumption / economy - urban: | 13 l/100 km | 8.4 l/100 km | 13.1 l/100 km | |
| Fuel consumption / economy - extra urban: | 7 l/100 km | 6.9 l/100 km | 8.7 l/100 km | |
| Fuel consumption / economy - combined: | 7.4 l/100 km | 11.8 l/100 km | ||
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.36 | |||
| Fuel tank volume: | 57 l | 66 l | 53 l | 73 l |
| Power: | 117 hp | 169 hp | 155 hp | 208 hp |
| Max power in: | 5200 rpm. | 5600 rpm. | 5600 rpm. | 5200 rpm. |
| Maximum speed: | 170 km/h | 185 km/h | 230 km/h | |
| Acceleration from 0 to 100 km/h: | 13 sec | 10.9 sec | ||
| Torque: | 190 Nm @ 3200 rpm. | 250 Nm @ 1700-4400 rpm. | 239 Nm @ 2000-4000 rpm. | 312 Nm/4000 rpm. |
| Model Engine: | B14XFT | |||
| Engine position: | Front, transverse | Front, transverse | Front, transverse | |
| Engine displacement: | 2260 cm3 | 1490 cm3 | 1399 cm3 | 3791 cm3 |
| Engine oil capacity: | 4.0 l | |||
| Coolant: | 7.3 l | |||
| Fuel System: | Multi-point injection | Direct injection | Direct injection | Multi-point injection |
| Aspiration / Turbine: | Turbocharger | Turbocharger | ||
| Position of cylinders: | Inline | Inline | Inline | V engine |
| Valvetrain: | DOHC-CVVT | - | ||
| Number of cylinders: | 4 | 4 | 4 | 6 |
| Number of valves per cylinder: | 2 | 4 | 4 | 2 |
| Compression ratio: | 9.5 | 10 | 9.4 | |
| Piston Stroke: | 85 mm | 81.3 mm | 86.4 mm | |
| Cylinder Bore: | 92 mm | 74 mm | 96.5 mm | |
| Wheel Drive: | Front wheel drive | All wheel drive (4x4) | Front wheel drive | Front wheel drive |
| Number of Gears (automatic transmission): | 3 | 7 DSG | 6 | 4 |
| Length: | 4770 mm | 4667 mm | 4277 mm | 5263 mm |
| Width: | 1715 mm | 1839 mm | 1775 mm | 1906 mm |
| Height: | 1350 mm | 1660 mm | 1656 mm | 1381 mm |
| Wheelbase: | 2625 mm | 2750 mm | 2555 mm | 2890 mm |
| Front track: | 1415 mm | 1584 mm | 1539 mm | 1588 mm |
| Rear (Back) track: | 1440 mm | 1588 mm | 1539 mm | 1589 mm |
| Ride height(clearance): | 157 mm | |||
| Minimum volume of Luggage (trunk): | 395 l | 533 l | 493 l | |
| Maximum amount of Luggage (trunk): | 1371 l | |||
| Front suspension: | Coil spring | The depreciated rack | ||
| Rear suspension: | Helical spring | Double wishbone | ||
| Max weight: | 1930 kg | |||
| Front brakes: | Ventilated discs | Ventilated discs | Ventilated discs | Ventilated discs |
| Rear brakes: | Drum | Disc | Disc | Disc |
| Kerb Weight: | 1230 kg | 1685 kg | 1468 kg | |
| ABS: | yes | yes | yes | yes |
| Steering type: | Steering rack and pinion | |||
| Power steering: | Hydraulic Steering | Hydraulic Steering | ||
| Minimum turning circle (turning diameter): | 11.2 m | |||
| Tire size: | 195/65 R15 | 225/65 R17 | 215/55 R18 | 225/60 R16 S |
| Wheel rims size: | R15 | R17 | R18 |