1991 Alfa Romeo SZ vs. 2006 Audi A6
To start off, 2006 Audi A6 is newer by 15 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 2,959 cc (6 cylinders), 1991 Alfa Romeo SZ is equipped with a bigger engine. In terms of performance, 1991 Alfa Romeo SZ (208 HP @ 6200 RPM) has 40 more horse power than 2006 Audi A6. (168 HP @ 6000 RPM). In normal driving conditions, 1991 Alfa Romeo SZ should accelerate faster than 2006 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A6 weights approximately 380 kg more than 1991 Alfa Romeo SZ.
Because 2006 Audi A6 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, 2006 Audi A6 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, 1991 Alfa Romeo SZ (245 Nm @ 4500 RPM) has 15 more torque (in Nm) than 2006 Audi A6. (230 Nm @ 3200 RPM). This means 1991 Alfa Romeo SZ will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi A6.
Compare all specifications:
| 1991 Alfa Romeo SZ | 2006 Audi A6 | |
| Make | Alfa Romeo | Audi |
| Model | SZ | A6 |
| Year Released | 1991 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 2959 cc | 2392 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 5 valves |
| Horse Power | 208 HP | 168 HP |
| Engine RPM | 6200 RPM | 6000 RPM |
| Torque | 245 Nm | 230 Nm |
| Torque RPM | 4500 RPM | 3200 RPM |
| Engine Bore Size | 93 mm | 81 mm |
| Engine Stroke Size | 72.6 mm | 77.4 mm |
| Engine Compression Ratio | 10.0:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 233 km/hour | 218 km/hour |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1260 kg | 1640 kg |
| Vehicle Length | 4670 mm | 4800 mm |
| Vehicle Width | 1740 mm | 1820 mm |
| Vehicle Height | 1320 mm | 1460 mm |
| Wheelbase Size | 2520 mm | 2770 mm |
| Fuel Tank Capacity | 50 L | 70 L |
