| Production | 1986-1987 |
| Fuel | Petrol |
| Motor Type | V6 |
| Displacement (cc/Cid) | 3791 / 231 |
| Number of Valves | 12 |
| Power | 276hp / 203kW @ 4400rpm |
| Torque | 488Nm / 360lb ft @ 3000rpm |
| Layout | Rear Wheel Drive |
| Gearbox | Automatic |
| Number of gears (transmission) | 4 |
| Top Speed (km/h / mph) | 229 / 142 |
| Acceleration (0 to 100km/h / 0 to 60mph) | 6 / 5.8 |
| Fuel consumption extra-urban/highway (l/100km / mpg(US)) | ? |
| Fuel consumption urban/city (l/100km / mpg(US)) | ? |
| Fuel consumption mixed (l/100km / mpg(US)) | 14.9 / 15.8 |
| Length (cm/inches) | 510 / 201 |
| Width (cm/inches) | 179 / 70 |
| Height (cm/inches) | 139 / 55 |
| Wheelbase (cm/inches) | 275 / 108 |
| Weight (kg / lbs) | 1470 / 3241 |
| Trunk Volume (dm3 / cu ft (US)) | 459 / 16.2 |
| Tank Capacity (l / gal (US)) | 68 / 18 |
| Tire size | 245/50 VR16 (F) 255/50 VR16 (R) |
| Others | ? |
Buick Regal Grand National 3.8 Buick LD5 V6 Turbo (GNX) 276hp
