2007 BMW 750 vs. 1986 Renault 21
To start off, 2007 BMW 750 is newer by 21 year(s). Which means there will be less support and parts availability for 1986 Renault 21. In addition, the cost of maintenance, including insurance, on 1986 Renault 21 would be higher. At 4,797 cc (8 cylinders), 2007 BMW 750 is equipped with a bigger engine. In terms of performance, 2007 BMW 750 (360 HP @ 6300 RPM) has 273 more horse power than 1986 Renault 21. (87 HP @ 5500 RPM). In normal driving conditions, 2007 BMW 750 should accelerate faster than 1986 Renault 21. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 750 weights approximately 805 kg more than 1986 Renault 21. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 BMW 750 is four wheel drive (4WD), it will have significant more traction and grip than 1986 Renault 21. In wet, icy, snow, or gravel driving conditions, 2007 BMW 750 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 750 (488 Nm @ 3400 RPM) has 350 more torque (in Nm) than 1986 Renault 21. (138 Nm @ 3500 RPM). This means 2007 BMW 750 will have an easier job in driving up hills or pulling heavy equipment than 1986 Renault 21. 2007 BMW 750 has automatic transmission and 1986 Renault 21 has manual transmission. 1986 Renault 21 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW 750 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW 750 | 1986 Renault 21 | |
| Make | BMW | Renault |
| Model | 750 | 21 |
| Year Released | 2007 | 1986 |
| Engine Position | Front | Front |
| Engine Size | 4797 cc | 1719 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 360 HP | 87 HP |
| Engine RPM | 6300 RPM | 5500 RPM |
| Torque | 488 Nm | 138 Nm |
| Torque RPM | 3400 RPM | 3500 RPM |
| Engine Bore Size | 93 mm | 81 mm |
| Engine Stroke Size | 88.3 mm | 83.5 mm |
| Engine Compression Ratio | 11.0:1 | 10.0:1 |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 7 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1835 kg | 1030 kg |
| Vehicle Length | 5050 mm | 4650 mm |
| Vehicle Width | 1910 mm | 1720 mm |
| Vehicle Height | 1500 mm | 1430 mm |
| Wheelbase Size | 3000 mm | 2760 mm |
| Fuel Tank Capacity | 88 L | 34 L |
