1968 BMW 1600 vs. 1986 Renault 21
To start off, 1986 Renault 21 is newer by 18 year(s). Which means there will be less support and parts availability for 1968 BMW 1600. In addition, the cost of maintenance, including insurance, on 1968 BMW 1600 would be higher. At 1,990 cc (4 cylinders), 1968 BMW 1600 is equipped with a bigger engine. In terms of performance, 1968 BMW 1600 (100 HP @ 5500 RPM) has 36 more horse power than 1986 Renault 21. (64 HP @ 4500 RPM). In normal driving conditions, 1968 BMW 1600 should accelerate faster than 1986 Renault 21. With that said, vehicle weight also plays an important factor in acceleration. 1986 Renault 21 weights approximately 60 kg more than 1968 BMW 1600.
Let's talk about torque, 1968 BMW 1600 (160 Nm @ 3500 RPM) has 42 more torque (in Nm) than 1986 Renault 21. (118 Nm @ 2250 RPM). This means 1968 BMW 1600 will have an easier job in driving up hills or pulling heavy equipment than 1986 Renault 21.
Compare all specifications:
| 1968 BMW 1600 | 1986 Renault 21 | |
| Make | BMW | Renault |
| Model | 1600 | 21 |
| Year Released | 1968 | 1986 |
| Engine Position | Front | Front |
| Engine Size | 1990 cc | 1870 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 100 HP | 64 HP |
| Engine RPM | 5500 RPM | 4500 RPM |
| Torque | 160 Nm | 118 Nm |
| Torque RPM | 3500 RPM | 2250 RPM |
| Engine Bore Size | 89 mm | 80 mm |
| Engine Stroke Size | 80 mm | 93 mm |
| Engine Compression Ratio | 8.5:1 | 21.5:1 |
| Fuel Type | Gasoline | Diesel |
| Number of Seats | 5 seats | 7 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 990 kg | 1050 kg |
| Vehicle Length | 4240 mm | 4540 mm |
| Vehicle Width | 1600 mm | 1730 mm |
| Vehicle Height | 1420 mm | 1430 mm |
| Wheelbase Size | 2510 mm | 2670 mm |
