1978 Holden GTS vs. 1998 Porsche 993
To start off, 1998 Porsche 993 is newer by 20 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, 1998 Porsche 993 (395 HP @ 5750 RPM) has 237 more horse power than 1978 Holden GTS. (158 HP @ 4550 RPM) In normal driving conditions, 1998 Porsche 993 should accelerate faster than 1978 Holden GTS. With that said, vehicle weight also plays an important factor in acceleration. 1998 Porsche 993 weights approximately 25 kg more than 1978 Holden GTS. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1998 Porsche 993 is four wheel drive (4WD), it will have significant more traction and grip than 1978 Holden GTS. In wet, icy, snow, or gravel driving conditions, 1998 Porsche 993 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, 1998 Porsche 993 (542 Nm @ 4500 RPM) has 215 more torque (in Nm) than 1978 Holden GTS. (327 Nm @ 2600 RPM). This means 1998 Porsche 993 will have an easier job in driving up hills or pulling heavy equipment than 1978 Holden GTS.
Compare all specifications:
| 1978 Holden GTS | 1998 Porsche 993 | |
| Make | Holden | Porsche |
| Model | GTS | 993 |
| Year Released | 1978 | 1998 |
| Engine Position | Front | Rear |
| Engine Size | 4141 cc | 3598 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 158 HP | 395 HP |
| Engine RPM | 4550 RPM | 5750 RPM |
| Torque | 327 Nm | 542 Nm |
| Torque RPM | 2600 RPM | 4500 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 1475 kg | 1500 kg |
| Vehicle Length | 4850 mm | 4270 mm |
| Vehicle Width | 1880 mm | 1740 mm |
| Vehicle Height | 1400 mm | 1320 mm |
| Wheelbase Size | 2830 mm | 2280 mm |
