2009 Mazda CX-7 vs. 1986 Renault 21
To start off, 2009 Mazda CX-7 is newer by 23 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 2,260 cc (4 cylinders), 2009 Mazda CX-7 is equipped with a bigger engine. In terms of performance, 2009 Mazda CX-7 (244 HP @ 5000 RPM) has 180 more horse power than 1986 Renault 21. (64 HP @ 4500 RPM). In normal driving conditions, 2009 Mazda CX-7 should accelerate faster than 1986 Renault 21. With that said, vehicle weight also plays an important factor in acceleration. 2009 Mazda CX-7 weights approximately 282 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 2009 Mazda CX-7 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, 2009 Mazda CX-7 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, 2009 Mazda CX-7 (350 Nm @ 2500 RPM) has 232 more torque (in Nm) than 1986 Renault 21. (118 Nm @ 2250 RPM). This means 2009 Mazda CX-7 will have an easier job in driving up hills or pulling heavy equipment than 1986 Renault 21. 2009 Mazda CX-7 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. 2009 Mazda CX-7 will be easier to drive especially in heavy traffic.
Compare all specifications:
2009 Mazda CX-7 | 1986 Renault 21 | |
Make | Mazda | Renault |
Model | CX-7 | 21 |
Year Released | 2009 | 1986 |
Engine Position | Front | Front |
Engine Size | 2260 cc | 1870 cc |
Engine Cylinders | 4 cylinders | 4 cylinders |
Engine Type | in-line | in-line |
Horse Power | 244 HP | 64 HP |
Engine RPM | 5000 RPM | 4500 RPM |
Torque | 350 Nm | 118 Nm |
Torque RPM | 2500 RPM | 2250 RPM |
Engine Compression Ratio | 10.0:1 | 21.5:1 |
Fuel Type | Gasoline | Diesel |
Drive Type | 4WD | Front |
Transmission Type | Automatic | Manual |
Number of Seats | 5 seats | 7 seats |
Number of Doors | 5 doors | 4 doors |
Vehicle Weight | 1332 kg | 1050 kg |
Vehicle Length | 4680 mm | 4540 mm |
Vehicle Width | 1880 mm | 1730 mm |
Vehicle Height | 1650 mm | 1430 mm |
Wheelbase Size | 2760 mm | 2670 mm |