2007 BMW X5 vs. 1978 Bristol 412
To start off, 2007 BMW X5 is newer by 29 year(s). Which means there will be less support and parts availability for 1978 Bristol 412. In addition, the cost of maintenance, including insurance, on 1978 Bristol 412 would be higher. At 5,898 cc (8 cylinders), 1978 Bristol 412 is equipped with a bigger engine. In terms of performance, 2007 BMW X5 (215 HP @ 4000 RPM) has 44 more horse power than 1978 Bristol 412. (171 HP @ 4000 RPM). In normal driving conditions, 2007 BMW X5 should accelerate faster than 1978 Bristol 412. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X5 weights approximately 482 kg more than 1978 Bristol 412. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 1978 Bristol 412. In wet, icy, snow, or gravel driving conditions, 2007 BMW X5 will offer significantly more control. 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, 2007 BMW X5 (500 Nm @ 2000 RPM) has 134 more torque (in Nm) than 1978 Bristol 412. (366 Nm @ 2000 RPM). This means 2007 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1978 Bristol 412. 1978 Bristol 412 has automatic transmission and 2007 BMW X5 has manual transmission. 2007 BMW X5 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1978 Bristol 412 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW X5 | 1978 Bristol 412 | |
| Make | BMW | Bristol |
| Model | X5 | 412 |
| Year Released | 2007 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 5898 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 215 HP | 171 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 500 Nm | 366 Nm |
| Torque RPM | 2000 RPM | 2000 RPM |
| Engine Bore Size | 84 mm | 101.6 mm |
| Engine Stroke Size | 90 mm | 90.9 mm |
| Engine Compression Ratio | 18.0:1 | 8.0:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 2172 kg | 1690 kg |
| Vehicle Length | 4670 mm | 4950 mm |
| Vehicle Width | 1880 mm | 1780 mm |
| Vehicle Height | 1720 mm | 1450 mm |
| Wheelbase Size | 2830 mm | 2910 mm |
