1976 Bristol 603 vs. 2011 Porsche 911
To start off, 2011 Porsche 911 is newer by 35 year(s). Which means there will be less support and parts availability for 1976 Bristol 603. In addition, the cost of maintenance, including insurance, on 1976 Bristol 603 would be higher. At 5,210 cc (8 cylinders), 1976 Bristol 603 is equipped with a bigger engine. In terms of performance, 2011 Porsche 911 (345 HP @ 6500 RPM) has 200 more horse power than 1976 Bristol 603. (145 HP @ 4000 RPM) In normal driving conditions, 2011 Porsche 911 should accelerate faster than 1976 Bristol 603. With that said, vehicle weight also plays an important factor in acceleration. 1976 Bristol 603 weights approximately 255 kg more than 2011 Porsche 911.
Because 2011 Porsche 911 is all wheel drive (AWD), it will have significant more traction and grip than 1976 Bristol 603. In wet, icy, snow, or gravel driving conditions, 2011 Porsche 911 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, 2011 Porsche 911 (390 Nm @ 4400 RPM) has 57 more torque (in Nm) than 1976 Bristol 603. (333 Nm @ 1600 RPM). This means 2011 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1976 Bristol 603. 1976 Bristol 603 has automatic transmission and 2011 Porsche 911 has manual transmission. 2011 Porsche 911 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1976 Bristol 603 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1976 Bristol 603 | 2011 Porsche 911 | |
| Make | Bristol | Porsche |
| Model | 603 | 911 |
| Year Released | 1976 | 2011 |
| Engine Position | Front | Rear |
| Engine Size | 5210 cc | 3600 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 145 HP | 345 HP |
| Engine RPM | 4000 RPM | 6500 RPM |
| Torque | 333 Nm | 390 Nm |
| Torque RPM | 1600 RPM | 4400 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | AWD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1785 kg | 1530 kg |
| Vehicle Length | 4920 mm | 4460 mm |
| Vehicle Width | 1780 mm | 1852 mm |
| Vehicle Height | 1450 mm | 1311 mm |
| Wheelbase Size | 2910 mm | 2350 mm |
| Fuel Tank Capacity | 81 L | 67 L |
