Comparison Buick Reatta Coupe 3.8 i V6 (173 Hp) & Buick Regal III Coupe 3.8 V6 (173 Hp) Automatic & Buick Excelle GX II (facelift 2018) 20T (169 Hp) Automatic & Buick Regal III Coupe 2.8 V6 (127 Hp) Automatic
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| Brand: | Buick | Buick | Buick | Buick |
| Model: | Reatta | Regal | Excelle GT | Regal |
| Generation: | Reatta Coupe | Regal III Coupe | Excelle GX II (facelift 2018) | Regal III Coupe |
| Engine / modification: | 3.8 i V6 (173 Hp) | 3.8 V6 (173 Hp) Automatic | 20T (169 Hp) Automatic | 2.8 V6 (127 Hp) Automatic |
| Production start: | 1988 year | 1988 year | 2018 year | 1988 year |
| Production end: | 1991 year | 1996 year | 1996 year | |
| Coupe type: | Coupe | Coupe | Combi | Coupe |
| Num. of Doors: | 2 | 2 | 5 | 2 |
| Num. of seats: | 2 | 5 | 5 | 5 |
| Fuel consumption / economy - urban: | 17 l/100 km | 12.4 l/100 km | 11.8 l/100 km | |
| Fuel consumption / economy - extra urban: | 10 l/100 km | 8.4 l/100 km | 8.1 l/100 km | |
| Fuel consumption / economy - combined: | 10.7 l/100 km | 5.8 l/100 km | 10.2 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.36 | 0.36 | ||
| Fuel tank volume: | 71 l | 62 l | 52 l | 62 l |
| Power: | 173 hp | 173 hp | 169 hp | 127 hp |
| Max power in: | 4800 rpm. | 4800 rpm. | 5600 rpm. | 4500 rpm. |
| Maximum speed: | 200 km/h | 205 km/h | ||
| Acceleration from 0 to 100 km/h: | 10 sec | 8.8 sec | ||
| Torque: | 298 Nm @ 3200 rpm. | 298 Nm @ 3200 rpm. | 250 Nm @ 1700-4400 rpm. | 217 Nm @ 3600 rpm. |
| Model Engine: | LN3 | L27 | LB6 | |
| Engine position: | Front, longitudinal | Front, transverse | Front, transverse | Front, transverse |
| Engine displacement: | 3791 cm3 | 3791 cm3 | 1490 cm3 | 2838 cm3 |
| Engine oil capacity: | 4.3 l | 4.3 l | 4.3 l | |
| Coolant: | 12.5 l | 10.5 l | 12.6 l | |
| Fuel System: | Multi-point injection | Multi-point injection | Direct injection | Multi-point injection |
| Aspiration / Turbine: | Turbocharger | |||
| Position of cylinders: | V engine | V engine | Inline | V engine |
| Valvetrain: | OHV | |||
| Number of cylinders: | 6 | 6 | 4 | 6 |
| Number of valves per cylinder: | 2 | 2 | 4 | 2 |
| Compression ratio: | 8.5 | 8.5 | 8.9 | |
| Piston Stroke: | 86.36 mm | 86.36 mm | 76.2 mm | |
| Cylinder Bore: | 96.52 mm | 96.52 mm | 88.9 mm | |
| Wheel Drive: | Front wheel drive | Front wheel drive | Front wheel drive | Front wheel drive |
| Number of Gears (automatic transmission): | 4 | 4 Hydramatic | 7 DCG | 4 Hydramatic |
| Length: | 4640 mm | 4917 mm | 4718 mm | 4882 mm |
| Width: | 1855 mm | 1842 mm | 1802 mm | 1824 mm |
| Height: | 1310 mm | 1346 mm | 1471 mm | 1346 mm |
| Wheelbase: | 2500 mm | 2730 mm | 2700 mm | 2730 mm |
| Front track: | 1530 mm | 1506 mm | 1540 mm | 1506 mm |
| Rear (Back) track: | 1530 mm | 1473 mm | 1558 mm | 1473 mm |
| Minimum volume of Luggage (trunk): | 280 l | 442 l | 460 l | 439 l |
| Front suspension: | The depreciated rack | Independent type McPherson | The depreciated rack | |
| Rear suspension: | The depreciated rack | Wishbone | Multi-link independent | Wishbone |
| Front brakes: | Ventilated discs | Ventilated discs | Ventilated discs | Ventilated discs |
| Rear brakes: | Disc | Disc | Disc | Disc |
| Kerb Weight: | 1540 kg | 1498 kg | 1320 kg | 1380 kg |
| ABS: | yes | yes | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion | ||
| Power steering: | Hydraulic Steering | Hydraulic Steering | ||
| Minimum turning circle (turning diameter): | 12.5 m | 12.5 m | ||
| Tire size: | 215/60 R18 | 205/70 R14 | 205/55 R16 | 195/75 R14 |
| Wheel rims size: | R18 | R14 | R16 | R14 |