1954 Alvis TC 21 vs. 2009 Chevrolet HHR
To start off, 2009 Chevrolet HHR is newer by 55 year(s). Which means there will be less support and parts availability for 1954 Alvis TC 21. In addition, the cost of maintenance, including insurance, on 1954 Alvis TC 21 would be higher. At 2,993 cc (6 cylinders), 1954 Alvis TC 21 is equipped with a bigger engine. In terms of performance, 2009 Chevrolet HHR (168 HP @ 6200 RPM) has 68 more horse power than 1954 Alvis TC 21. (100 HP @ 4000 RPM) In normal driving conditions, 2009 Chevrolet HHR should accelerate faster than 1954 Alvis TC 21. With that said, vehicle weight also plays an important factor in acceleration. 2009 Chevrolet HHR weights approximately 30 kg more than 1954 Alvis TC 21. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1954 Alvis TC 21 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1954 Alvis TC 21. However, in wet, icy, snow, or gravel driving conditions, 2009 Chevrolet HHR, being front wheel drive (FWD), will offer much better control with better grip. 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, 2009 Chevrolet HHR (222 Nm @ 4800 RPM) has 1 more torque (in Nm) than 1954 Alvis TC 21. (221 Nm @ 2000 RPM). This means 2009 Chevrolet HHR will have an easier job in driving up hills or pulling heavy equipment than 1954 Alvis TC 21.
Compare all specifications:
| 1954 Alvis TC 21 | 2009 Chevrolet HHR | |
| Make | Alvis | Chevrolet |
| Model | TC 21 | HHR |
| Year Released | 1954 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 2399 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 100 HP | 168 HP |
| Engine RPM | 4000 RPM | 6200 RPM |
| Torque | 221 Nm | 222 Nm |
| Torque RPM | 2000 RPM | 4800 RPM |
| Engine Bore Size | 84 mm | 88 mm |
| Engine Stroke Size | 90 mm | 98 mm |
| Engine Compression Ratio | 8.0:1 | 10.4:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 160 km/hour | 180 km/hour |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1440 kg | 1470 kg |
| Vehicle Length | 4630 mm | 3380 mm |
| Vehicle Width | 1680 mm | 1760 mm |
| Vehicle Height | 1580 mm | 1610 mm |
| Wheelbase Size | 2840 mm | 2640 mm |
| Fuel Tank Capacity | 64 L | 61 L |
