1973 Buick Riviera vs. 2005 BMW 645
To start off, 2005 BMW 645 is newer by 32 year(s). Which means there will be less support and parts availability for 1973 Buick Riviera. In addition, the cost of maintenance, including insurance, on 1973 Buick Riviera would be higher. At 7,468 cc (8 cylinders), 1973 Buick Riviera is equipped with a bigger engine. In terms of performance, 2005 BMW 645 (326 HP @ 6100 RPM) has 76 more horse power than 1973 Buick Riviera. (250 HP @ 4000 RPM) In normal driving conditions, 2005 BMW 645 should accelerate faster than 1973 Buick Riviera. With that said, vehicle weight also plays an important factor in acceleration. 1973 Buick Riviera weights approximately 145 kg more than 2005 BMW 645.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 1973 Buick Riviera (518 Nm @ 2800 RPM) has 71 more torque (in Nm) than 2005 BMW 645. (447 Nm @ 3600 RPM). This means 1973 Buick Riviera will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW 645.
Compare all specifications:
| 1973 Buick Riviera | 2005 BMW 645 | |
| Make | Buick | BMW |
| Model | Riviera | 645 |
| Year Released | 1973 | 2005 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Front |
| Engine Size | 7468 cc | 4392 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 250 HP | 326 HP |
| Engine RPM | 4000 RPM | 6100 RPM |
| Torque | 518 Nm | 447 Nm |
| Torque RPM | 2800 RPM | 3600 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 2040 kg | 1895 kg |
| Vehicle Length | 5560 mm | 4830 mm |
| Vehicle Width | 2040 mm | 1860 mm |
| Vehicle Height | 1380 mm | 1380 mm |
| Wheelbase Size | 3110 mm | 2890 mm |
| Fuel Tank Capacity | 95 L | 70 L |
