1968 Alfa Romeo Spider vs. 1981 Audi UR
To start off, 1981 Audi UR is newer by 13 year(s). Which means there will be less support and parts availability for 1968 Alfa Romeo Spider. In addition, the cost of maintenance, including insurance, on 1968 Alfa Romeo Spider would be higher. At 2,580 cc (6 cylinders), 1968 Alfa Romeo Spider is equipped with a bigger engine. In terms of performance, 1981 Audi UR (197 HP @ 5500 RPM) has 34 more horse power than 1968 Alfa Romeo Spider. (163 HP @ 5900 RPM) In normal driving conditions, 1981 Audi UR should accelerate faster than 1968 Alfa Romeo Spider. With that said, vehicle weight also plays an important factor in acceleration. 1968 Alfa Romeo Spider weights approximately 80 kg more than 1981 Audi UR.
Let's talk about torque, 1981 Audi UR (285 Nm @ 3500 RPM) has 65 more torque (in Nm) than 1968 Alfa Romeo Spider. (220 Nm @ 4000 RPM). This means 1981 Audi UR will have an easier job in driving up hills or pulling heavy equipment than 1968 Alfa Romeo Spider.
Compare all specifications:
| 1968 Alfa Romeo Spider | 1981 Audi UR | |
| Make | Alfa Romeo | Audi |
| Model | Spider | UR |
| Year Released | 1968 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 2580 cc | 2144 cc |
| Engine Cylinders | 6 cylinders | 5 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 163 HP | 197 HP |
| Engine RPM | 5900 RPM | 5500 RPM |
| Torque | 220 Nm | 285 Nm |
| Torque RPM | 4000 RPM | 3500 RPM |
| Engine Bore Size | 83 mm | 79.5 mm |
| Engine Stroke Size | 79.6 mm | 86.4 mm |
| Engine Compression Ratio | 9.0:1 | 7.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1330 kg | 1250 kg |
| Vehicle Length | 4510 mm | 4430 mm |
| Vehicle Width | 1610 mm | 1690 mm |
| Vehicle Height | 1390 mm | 1360 mm |
| Wheelbase Size | 2510 mm | 2530 mm |
| Fuel Tank Capacity | 47 L | 70 L |
