2004 Alfa Romeo 156 vs. 1951 Alvis TA 21
To start off, 2004 Alfa Romeo 156 is newer by 53 year(s). Which means there will be less support and parts availability for 1951 Alvis TA 21. In addition, the cost of maintenance, including insurance, on 1951 Alvis TA 21 would be higher. At 2,993 cc (6 cylinders), 1951 Alvis TA 21 is equipped with a bigger engine. In terms of performance, 2004 Alfa Romeo 156 (148 HP @ 4000 RPM) has 55 more horse power than 1951 Alvis TA 21. (93 HP @ 4000 RPM). In normal driving conditions, 2004 Alfa Romeo 156 should accelerate faster than 1951 Alvis TA 21. With that said, vehicle weight also plays an important factor in acceleration. 2004 Alfa Romeo 156 weights approximately 137 kg more than 1951 Alvis TA 21. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Alfa Romeo 156 is four wheel drive (4WD), it will have significant more traction and grip than 1951 Alvis TA 21. In wet, icy, snow, or gravel driving conditions, 2004 Alfa Romeo 156 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 Alfa Romeo 156 (300 Nm @ 2000 RPM) has 96 more torque (in Nm) than 1951 Alvis TA 21. (204 Nm @ 2000 RPM). This means 2004 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 1951 Alvis TA 21.
Compare all specifications:
| 2004 Alfa Romeo 156 | 1951 Alvis TA 21 | |
| Make | Alfa Romeo | Alvis |
| Model | 156 | TA 21 |
| Year Released | 2004 | 1951 |
| Engine Position | Front | Front |
| Engine Size | 1910 cc | 2993 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 148 HP | 93 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 300 Nm | 204 Nm |
| Torque RPM | 2000 RPM | 2000 RPM |
| Engine Bore Size | 82 mm | 84 mm |
| Engine Stroke Size | 90.4 mm | 90 mm |
| Engine Compression Ratio | 18.5:1 | 7.1:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1585 kg | 1448 kg |
| Vehicle Length | 4450 mm | 4630 mm |
| Vehicle Width | 1770 mm | 1680 mm |
| Vehicle Height | 1480 mm | 1600 mm |
| Wheelbase Size | 2600 mm | 2840 mm |
| Fuel Tank Capacity | 50 L | 64 L |
