2007 Lexus RX vs. 1978 Mercury Cougar
To start off, 2007 Lexus RX is newer by 29 year(s). Which means there will be less support and parts availability for 1978 Mercury Cougar. In addition, the cost of maintenance, including insurance, on 1978 Mercury Cougar would be higher. At 4,941 cc (8 cylinders), 1978 Mercury Cougar is equipped with a bigger engine. In terms of performance, 2007 Lexus RX (272 HP @ 6200 RPM) has 139 more horse power than 1978 Mercury Cougar. (133 HP @ 3400 RPM). In normal driving conditions, 2007 Lexus RX should accelerate faster than 1978 Mercury Cougar. With that said, vehicle weight also plays an important factor in acceleration. 2007 Lexus RX weights approximately 55 kg more than 1978 Mercury Cougar. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Lexus RX is four wheel drive (4WD), it will have significant more traction and grip than 1978 Mercury Cougar. In wet, icy, snow, or gravel driving conditions, 2007 Lexus RX 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 Lexus RX (342 Nm @ 4700 RPM) has 6 more torque (in Nm) than 1978 Mercury Cougar. (336 Nm @ 1600 RPM). This means 2007 Lexus RX will have an easier job in driving up hills or pulling heavy equipment than 1978 Mercury Cougar.
Compare all specifications:
| 2007 Lexus RX | 1978 Mercury Cougar | |
| Make | Lexus | Mercury |
| Model | RX | Cougar |
| Year Released | 2007 | 1978 |
| Body Type | SUV | Coupe |
| Engine Position | Front | Front |
| Engine Size | 3456 cc | 4941 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Horse Power | 272 HP | 133 HP |
| Engine RPM | 6200 RPM | 3400 RPM |
| Torque | 342 Nm | 336 Nm |
| Torque RPM | 4700 RPM | 1600 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | Rear |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1910 kg | 1855 kg |
| Vehicle Length | 4580 mm | 5480 mm |
| Vehicle Width | 1850 mm | 2010 mm |
| Vehicle Height | 1680 mm | 1340 mm |
| Wheelbase Size | 2730 mm | 2910 mm |
