2006 Audi S4 vs. 1999 Buick Regal
To start off, 2006 Audi S4 is newer by 7 year(s). Which means there will be less support and parts availability for 1999 Buick Regal. In addition, the cost of maintenance, including insurance, on 1999 Buick Regal would be higher. At 4,163 cc (8 cylinders), 2006 Audi S4 is equipped with a bigger engine. In terms of performance, 2006 Audi S4 (340 HP @ 7000 RPM) has 95 more horse power than 1999 Buick Regal. (245 HP @ 5200 RPM). In normal driving conditions, 2006 Audi S4 should accelerate faster than 1999 Buick Regal. With that said, vehicle weight also plays an important factor in acceleration. 1999 Buick Regal weights approximately 50 kg more than 2006 Audi S4.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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, 2006 Audi S4 (410 Nm @ 3500 RPM) has 30 more torque (in Nm) than 1999 Buick Regal. (380 Nm @ 3600 RPM). This means 2006 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1999 Buick Regal.
Compare all specifications:
| 2006 Audi S4 | 1999 Buick Regal | |
| Make | Audi | Buick |
| Model | S4 | Regal |
| Year Released | 2006 | 1999 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 3789 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 340 HP | 245 HP |
| Engine RPM | 7000 RPM | 5200 RPM |
| Torque | 410 Nm | 380 Nm |
| Torque RPM | 3500 RPM | 3600 RPM |
| Engine Compression Ratio | 11.0:1 | 8.5:1 |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1510 kg | 1560 kg |
| Vehicle Length | 4590 mm | 4990 mm |
| Vehicle Width | 1790 mm | 1850 mm |
| Vehicle Height | 1420 mm | 1440 mm |
| Wheelbase Size | 2660 mm | 2780 mm |
| Fuel Tank Capacity | 63 L | 64 L |
