1951 Alvis TA 21 vs. 2013 BMW 6 series
To start off, 2013 BMW 6 series is newer by 62 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 4,395 cc (8 cylinders), 2013 BMW 6 series is equipped with a bigger engine. In terms of performance, 2013 BMW 6 series (439 HP @ 6000 RPM) has 346 more horse power than 1951 Alvis TA 21. (93 HP @ 4000 RPM) In normal driving conditions, 2013 BMW 6 series should accelerate faster than 1951 Alvis TA 21. With that said, vehicle weight also plays an important factor in acceleration. 2013 BMW 6 series weights approximately 491 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.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front 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, 2013 BMW 6 series (651 Nm @ 4500 RPM) has 447 more torque (in Nm) than 1951 Alvis TA 21. (204 Nm @ 2000 RPM). This means 2013 BMW 6 series will have an easier job in driving up hills or pulling heavy equipment than 1951 Alvis TA 21. 2013 BMW 6 series has automatic transmission and 1951 Alvis TA 21 has manual transmission. 1951 Alvis TA 21 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2013 BMW 6 series will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1951 Alvis TA 21 | 2013 BMW 6 series | |
| Make | Alvis | BMW |
| Model | TA 21 | 6 series |
| Year Released | 1951 | 2013 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 4395 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 93 HP | 439 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 204 Nm | 651 Nm |
| Torque RPM | 2000 RPM | 4500 RPM |
| Engine Bore Size | 84 mm | 89 mm |
| Engine Stroke Size | 90 mm | 89 mm |
| Engine Compression Ratio | 7.1:1 | 10.0 :1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | 8-speed automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1448 kg | 1939 kg |
| Vehicle Length | 4630 mm | 5009 mm |
| Vehicle Width | 1680 mm | 2081 mm |
| Vehicle Height | 1600 mm | 1392 mm |
| Wheelbase Size | 2840 mm | 2968 mm |
| Fuel Tank Capacity | 64 L | 70 L |
