1968 Buick Riviera vs. 2007 Opel Signum
To start off, 2007 Opel Signum is newer by 39 year(s). Which means there will be less support and parts availability for 1968 Buick Riviera. In addition, the cost of maintenance, including insurance, on 1968 Buick Riviera would be higher. At 7,050 cc (8 cylinders), 1968 Buick Riviera is equipped with a bigger engine. In terms of performance, 1968 Buick Riviera (305 HP @ 5000 RPM) has 130 more horse power than 2007 Opel Signum. (175 HP @ 4000 RPM). In normal driving conditions, 1968 Buick Riviera should accelerate faster than 2007 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 1968 Buick Riviera weights approximately 230 kg more than 2007 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1968 Buick Riviera 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 1968 Buick Riviera. However, in wet, icy, snow, or gravel driving conditions, 2007 Opel Signum, 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, 1968 Buick Riviera (645 Nm @ 3200 RPM) has 275 more torque (in Nm) than 2007 Opel Signum. (370 Nm @ 1900 RPM). This means 1968 Buick Riviera will have an easier job in driving up hills or pulling heavy equipment than 2007 Opel Signum.
Compare all specifications:
| 1968 Buick Riviera | 2007 Opel Signum | |
| Make | Buick | Opel |
| Model | Riviera | Signum |
| Year Released | 1968 | 2007 |
| Body Type | Coupe | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 7050 cc | 2958 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 305 HP | 175 HP |
| Engine RPM | 5000 RPM | 4000 RPM |
| Torque | 645 Nm | 370 Nm |
| Torque RPM | 3200 RPM | 1900 RPM |
| Engine Bore Size | 106.2 mm | 87.5 mm |
| Engine Stroke Size | 99.4 mm | 82 mm |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 193 km/hour | 221 km/hour |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1900 kg | 1670 kg |
| Vehicle Length | 5370 mm | 4640 mm |
| Vehicle Width | 2020 mm | 1800 mm |
| Vehicle Height | 1370 mm | 1470 mm |
| Wheelbase Size | 3030 mm | 2840 mm |
| Fuel Tank Capacity | 75 L | 60 L |
