1991 Buick Reatta vs. 1977 Opel Commodore
To start off, 1991 Buick Reatta is newer by 14 year(s). Which means there will be less support and parts availability for 1977 Opel Commodore. In addition, the cost of maintenance, including insurance, on 1977 Opel Commodore would be higher. At 3,791 cc (6 cylinders), 1991 Buick Reatta is equipped with a bigger engine. In terms of performance, 1991 Buick Reatta (165 HP @ 4400 RPM) has 24 more horse power than 1977 Opel Commodore. (141 HP @ 5200 RPM). In normal driving conditions, 1991 Buick Reatta should accelerate faster than 1977 Opel Commodore. With that said, vehicle weight also plays an important factor in acceleration. 1991 Buick Reatta weights approximately 247 kg more than 1977 Opel Commodore. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1977 Opel Commodore is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1977 Opel Commodore. However, in wet, icy, snow, or gravel driving conditions, 1991 Buick Reatta, being front wheel drive (FWD), will offer much better control with better grip. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 1991 Buick Reatta (286 Nm) has 69 more torque (in Nm) than 1977 Opel Commodore. (217 Nm). This means 1991 Buick Reatta will have an easier job in driving up hills or pulling heavy equipment than 1977 Opel Commodore.
Compare all specifications:
| 1991 Buick Reatta | 1977 Opel Commodore | |
| Make | Buick | Opel |
| Model | Reatta | Commodore |
| Year Released | 1991 | 1977 |
| Engine Position | Front | Front |
| Engine Size | 3791 cc | 2784 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 165 HP | 141 HP |
| Engine RPM | 4400 RPM | 5200 RPM |
| Torque | 286 Nm | 217 Nm |
| Engine Bore Size | 96.5 mm | 92 mm |
| Engine Stroke Size | 86.4 mm | 69.8 mm |
| Drive Type | Front | Rear |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1532 kg | 1285 kg |
| Vehicle Length | 4670 mm | 4620 mm |
| Vehicle Width | 1860 mm | 1730 mm |
| Vehicle Height | 1310 mm | 1430 mm |
| Wheelbase Size | 2510 mm | 2670 mm |
| Fuel Tank Capacity | 62 L | 70 L |
