1991 Alfa Romeo SZ vs. 2005 Audi RS6
To start off, 2005 Audi RS6 is newer by 14 year(s). Which means there will be less support and parts availability for 1991 Alfa Romeo SZ. In addition, the cost of maintenance, including insurance, on 1991 Alfa Romeo SZ would be higher. At 4,172 cc (8 cylinders), 2005 Audi RS6 is equipped with a bigger engine. In terms of performance, 2005 Audi RS6 (444 HP @ 5700 RPM) has 236 more horse power than 1991 Alfa Romeo SZ. (208 HP @ 6200 RPM) In normal driving conditions, 2005 Audi RS6 should accelerate faster than 1991 Alfa Romeo SZ. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi RS6 weights approximately 555 kg more than 1991 Alfa Romeo SZ. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi RS6 is four wheel drive (4WD), it will have significant more traction and grip than 1991 Alfa Romeo SZ. In wet, icy, snow, or gravel driving conditions, 2005 Audi RS6 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, 2005 Audi RS6 (560 Nm @ 1950 RPM) has 315 more torque (in Nm) than 1991 Alfa Romeo SZ. (245 Nm @ 4500 RPM). This means 2005 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 1991 Alfa Romeo SZ. 2005 Audi RS6 has automatic transmission and 1991 Alfa Romeo SZ has manual transmission. 1991 Alfa Romeo SZ will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Audi RS6 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1991 Alfa Romeo SZ | 2005 Audi RS6 | |
| Make | Alfa Romeo | Audi |
| Model | SZ | RS6 |
| Year Released | 1991 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 2959 cc | 4172 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 5 valves |
| Horse Power | 208 HP | 444 HP |
| Engine RPM | 6200 RPM | 5700 RPM |
| Torque | 245 Nm | 560 Nm |
| Torque RPM | 4500 RPM | 1950 RPM |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1260 kg | 1815 kg |
| Vehicle Length | 4670 mm | 4860 mm |
| Vehicle Width | 1740 mm | 1860 mm |
| Vehicle Height | 1320 mm | 1460 mm |
| Wheelbase Size | 2520 mm | 2850 mm |
| Fuel Tank Capacity | 50 L | 82 L |
