1973 GMC Suburban vs. 1991 Porsche 964
To start off, 1991 Porsche 964 is newer by 18 year(s). Which means there will be less support and parts availability for 1973 GMC Suburban. In addition, the cost of maintenance, including insurance, on 1973 GMC Suburban would be higher. At 5,733 cc (8 cylinders), 1973 GMC Suburban is equipped with a bigger engine. In terms of performance, 1991 Porsche 964 (261 HP @ 6100 RPM) has 108 more horse power than 1973 GMC Suburban. (153 HP @ 4000 RPM) In normal driving conditions, 1991 Porsche 964 should accelerate faster than 1973 GMC Suburban. With that said, vehicle weight also plays an important factor in acceleration. 1973 GMC Suburban weights approximately 1095 kg more than 1991 Porsche 964.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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, 1973 GMC Suburban (345 Nm @ 2400 RPM) has 27 more torque (in Nm) than 1991 Porsche 964. (318 Nm @ 4800 RPM). This means 1973 GMC Suburban will have an easier job in driving up hills or pulling heavy equipment than 1991 Porsche 964. 1973 GMC Suburban has automatic transmission and 1991 Porsche 964 has manual transmission. 1991 Porsche 964 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1973 GMC Suburban will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1973 GMC Suburban | 1991 Porsche 964 | |
| Make | GMC | Porsche |
| Model | Suburban | 964 |
| Year Released | 1973 | 1991 |
| Engine Position | Front | Rear |
| Engine Size | 5733 cc | 3600 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 153 HP | 261 HP |
| Engine RPM | 4000 RPM | 6100 RPM |
| Torque | 345 Nm | 318 Nm |
| Torque RPM | 2400 RPM | 4800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Manual |
| Vehicle Weight | 2300 kg | 1205 kg |
| Vehicle Length | 5480 mm | 4260 mm |
| Vehicle Width | 1950 mm | 1660 mm |
| Vehicle Height | 1800 mm | 1330 mm |
| Wheelbase Size | 3300 mm | 2280 mm |
