2005 GMC Envoy vs. 1971 Riley 4
To start off, 2005 GMC Envoy is newer by 34 year(s). Which means there will be less support and parts availability for 1971 Riley 4. In addition, the cost of maintenance, including insurance, on 1971 Riley 4 would be higher. At 4,162 cc (6 cylinders), 2005 GMC Envoy is equipped with a bigger engine. In terms of performance, 2005 GMC Envoy (275 HP) has 208 more horse power than 1971 Riley 4. (67 HP). In normal driving conditions, 2005 GMC Envoy should accelerate faster than 1971 Riley 4. With that said, vehicle weight also plays an important factor in acceleration. 2005 GMC Envoy weights approximately 1128 kg more than 1971 Riley 4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 GMC Envoy is four wheel drive (4WD), it will have significant more traction and grip than 1971 Riley 4. In wet, icy, snow, or gravel driving conditions, 2005 GMC Envoy 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, 2005 GMC Envoy (373 Nm) has 252 more torque (in Nm) than 1971 Riley 4. (121 Nm). This means 2005 GMC Envoy will have an easier job in driving up hills or pulling heavy equipment than 1971 Riley 4.
Compare all specifications:
| 2005 GMC Envoy | 1971 Riley 4 | |
| Make | GMC | Riley |
| Model | Envoy | 4 |
| Year Released | 2005 | 1971 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4162 cc | 1622 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 275 HP | 67 HP |
| Torque | 373 Nm | 121 Nm |
| Engine Bore Size | 93 mm | 76.3 mm |
| Engine Stroke Size | 102 mm | 88.9 mm |
| Engine Compression Ratio | 10.0:1 | 8.3:1 |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 2276 kg | 1148 kg |
| Vehicle Length | 5300 mm | 4540 mm |
| Vehicle Width | 1880 mm | 1620 mm |
| Vehicle Height | 1850 mm | 1510 mm |
| Wheelbase Size | 3280 mm | 2530 mm |
| Fuel Tank Capacity | 95 L | 45 L |
