1978 Holden GTS vs. 1989 Porsche 911
To start off, 1989 Porsche 911 is newer by 11 year(s). Which means there will be less support and parts availability for 1978 Holden GTS. In addition, the cost of maintenance, including insurance, on 1978 Holden GTS would be higher. At 4,141 cc (8 cylinders), 1978 Holden GTS is equipped with a bigger engine. In terms of performance, 1989 Porsche 911 (247 HP @ 6100 RPM) has 89 more horse power than 1978 Holden GTS. (158 HP @ 4550 RPM) In normal driving conditions, 1989 Porsche 911 should accelerate faster than 1978 Holden GTS. With that said, vehicle weight also plays an important factor in acceleration. 1978 Holden GTS weights approximately 125 kg more than 1989 Porsche 911.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front 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, 1978 Holden GTS (327 Nm @ 2600 RPM) has 17 more torque (in Nm) than 1989 Porsche 911. (310 Nm @ 4800 RPM). This means 1978 Holden GTS will have an easier job in driving up hills or pulling heavy equipment than 1989 Porsche 911.
Compare all specifications:
| 1978 Holden GTS | 1989 Porsche 911 | |
| Make | Holden | Porsche |
| Model | GTS | 911 |
| Year Released | 1978 | 1989 |
| Engine Position | Front | Rear |
| Engine Size | 4141 cc | 3600 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 158 HP | 247 HP |
| Engine RPM | 4550 RPM | 6100 RPM |
| Torque | 327 Nm | 310 Nm |
| Torque RPM | 2600 RPM | 4800 RPM |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 1475 kg | 1350 kg |
| Vehicle Length | 4850 mm | 4300 mm |
| Vehicle Width | 1880 mm | 1660 mm |
| Vehicle Height | 1400 mm | 1330 mm |
| Wheelbase Size | 2830 mm | 2270 mm |
