1955 Alvis TC 21 vs. 2004 Audi S4
To start off, 2004 Audi S4 is newer by 49 year(s). Which means there will be less support and parts availability for 1955 Alvis TC 21. In addition, the cost of maintenance, including insurance, on 1955 Alvis TC 21 would be higher. At 4,170 cc (8 cylinders), 2004 Audi S4 is equipped with a bigger engine. In terms of performance, 2004 Audi S4 (339 HP @ 7000 RPM) has 234 more horse power than 1955 Alvis TC 21. (105 HP @ 4000 RPM) In normal driving conditions, 2004 Audi S4 should accelerate faster than 1955 Alvis TC 21. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi S4 weights approximately 305 kg more than 1955 Alvis TC 21. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 1955 Alvis TC 21. In wet, icy, snow, or gravel driving conditions, 2004 Audi S4 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, 2004 Audi S4 (410 Nm @ 3500 RPM) has 189 more torque (in Nm) than 1955 Alvis TC 21. (221 Nm @ 2500 RPM). This means 2004 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1955 Alvis TC 21. 2004 Audi S4 has automatic transmission and 1955 Alvis TC 21 has manual transmission. 1955 Alvis TC 21 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2004 Audi S4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1955 Alvis TC 21 | 2004 Audi S4 | |
| Make | Alvis | Audi |
| Model | TC 21 | S4 |
| Year Released | 1955 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 4170 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 5 valves |
| Horse Power | 105 HP | 339 HP |
| Engine RPM | 4000 RPM | 7000 RPM |
| Torque | 221 Nm | 410 Nm |
| Torque RPM | 2500 RPM | 3500 RPM |
| Engine Bore Size | 84 mm | 84.5 mm |
| Engine Stroke Size | 90 mm | 92.8 mm |
| Engine Compression Ratio | 8.0:1 | 11.0:1 |
| Top Speed | 164 km/hour | 250 km/hour |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1450 kg | 1755 kg |
| Vehicle Length | 4810 mm | 4590 mm |
| Vehicle Width | 1680 mm | 1780 mm |
| Vehicle Height | 1590 mm | 1430 mm |
| Wheelbase Size | 2840 mm | 2430 mm |
