1981 GMC Suburban vs. 1970 Riley 4
To start off, 1981 GMC Suburban is newer by 11 year(s). Which means there will be less support and parts availability for 1970 Riley 4. In addition, the cost of maintenance, including insurance, on 1970 Riley 4 would be higher. At 6,210 cc (8 cylinders), 1981 GMC Suburban is equipped with a bigger engine. In terms of performance, 1981 GMC Suburban (129 HP @ 3600 RPM) has 62 more horse power than 1970 Riley 4. (67 HP @ 5000 RPM). In normal driving conditions, 1981 GMC Suburban should accelerate faster than 1970 Riley 4. With that said, vehicle weight also plays an important factor in acceleration. 1981 GMC Suburban weights approximately 1247 kg more than 1970 Riley 4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1981 GMC Suburban is four wheel drive (4WD), it will have significant more traction and grip than 1970 Riley 4. In wet, icy, snow, or gravel driving conditions, 1981 GMC Suburban 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, 1981 GMC Suburban (326 Nm @ 2000 RPM) has 206 more torque (in Nm) than 1970 Riley 4. (120 Nm @ 2500 RPM). This means 1981 GMC Suburban will have an easier job in driving up hills or pulling heavy equipment than 1970 Riley 4.
Compare all specifications:
| 1981 GMC Suburban | 1970 Riley 4 | |
| Make | GMC | Riley |
| Model | Suburban | 4 |
| Year Released | 1981 | 1970 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 6210 cc | 1622 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 129 HP | 67 HP |
| Engine RPM | 3600 RPM | 5000 RPM |
| Torque | 326 Nm | 120 Nm |
| Torque RPM | 2000 RPM | 2500 RPM |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | Rear |
| Vehicle Weight | 2395 kg | 1148 kg |
| Vehicle Length | 5480 mm | 4540 mm |
| Vehicle Width | 1950 mm | 1620 mm |
| Vehicle Height | 1800 mm | 1510 mm |
| Wheelbase Size | 3300 mm | 2530 mm |
