2005 BMW 645 vs. 1998 Chrysler Viper
To start off, 2005 BMW 645 is newer by 7 year(s). Which means there will be less support and parts availability for 1998 Chrysler Viper. In addition, the cost of maintenance, including insurance, on 1998 Chrysler Viper would be higher. At 7,986 cc (10 cylinders), 1998 Chrysler Viper is equipped with a bigger engine. In terms of performance, 1998 Chrysler Viper (389 HP @ 5150 RPM) has 51 more horse power than 2005 BMW 645. (338 HP @ 6100 RPM) In normal driving conditions, 1998 Chrysler Viper should accelerate faster than 2005 BMW 645. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 645 weights approximately 125 kg more than 1998 Chrysler Viper.
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, 1998 Chrysler Viper (621 Nm @ 3600 RPM) has 182 more torque (in Nm) than 2005 BMW 645. (439 Nm @ 3600 RPM). This means 1998 Chrysler Viper will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW 645.
Compare all specifications:
| 2005 BMW 645 | 1998 Chrysler Viper | |
| Make | BMW | Chrysler |
| Model | 645 | Viper |
| Year Released | 2005 | 1998 |
| Body Type | Coupe | Roadster |
| Engine Position | Front | Front |
| Engine Size | 4390 cc | 7986 cc |
| Engine Cylinders | 8 cylinders | 10 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 338 HP | 389 HP |
| Engine RPM | 6100 RPM | 5150 RPM |
| Torque | 439 Nm | 621 Nm |
| Torque RPM | 3600 RPM | 3600 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1715 kg | 1590 kg |
| Vehicle Length | 4830 mm | 4460 mm |
| Vehicle Width | 1860 mm | 1930 mm |
| Vehicle Height | 1380 mm | 1130 mm |
| Wheelbase Size | 2790 mm | 2450 mm |
