1986 AC Ace vs. 1971 Porsche 917
To start off, 1986 AC Ace is newer by 15 year(s). Which means there will be less support and parts availability for 1971 Porsche 917. In addition, the cost of maintenance, including insurance, on 1971 Porsche 917 would be higher. At 4,994 cc, 1971 Porsche 917 is equipped with a bigger engine. In terms of performance, 1971 Porsche 917 (520 HP) has 319 more horse power than 1986 AC Ace. (201 HP) In normal driving conditions, 1971 Porsche 917 should accelerate faster than 1986 AC Ace. With that said, vehicle weight also plays an important factor in acceleration. 1986 AC Ace weights approximately 222 kg more than 1971 Porsche 917.
Because 1986 AC Ace is four wheel drive (4WD), it will have significant more traction and grip than 1971 Porsche 917. In wet, icy, snow, or gravel driving conditions, 1986 AC Ace 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, 1971 Porsche 917 (610 Nm) has 334 more torque (in Nm) than 1986 AC Ace. (276 Nm). This means 1971 Porsche 917 will have an easier job in driving up hills or pulling heavy equipment than 1986 AC Ace.
Compare all specifications:
| 1986 AC Ace | 1971 Porsche 917 | |
| Make | AC | Porsche |
| Model | Ace | 917 |
| Year Released | 1986 | 1971 |
| Body Type | Roadster | Coupe |
| Engine Position | Front | Middle |
| Engine Size | 1994 cc | 4994 cc |
| Horse Power | 201 HP | 520 HP |
| Torque | 276 Nm | 610 Nm |
| Engine Compression Ratio | 8.0:1 | 10.5:1 |
| Drive Type | 4WD | Rear |
| Vehicle Weight | 1020 kg | 798 kg |
