2004 Morgan Aero 8 vs. 1991 Morgan 4
To start off, 2004 Morgan Aero 8 is newer by 13 year(s). Which means there will be less support and parts availability for 1991 Morgan 4. In addition, the cost of maintenance, including insurance, on 1991 Morgan 4 would be higher. At 4,398 cc (8 cylinders), 2004 Morgan Aero 8 is equipped with a bigger engine. In terms of performance, 2004 Morgan Aero 8 (322 HP @ 6100 RPM) has 218 more horse power than 1991 Morgan 4. (104 HP @ 6000 RPM). In normal driving conditions, 2004 Morgan Aero 8 should accelerate faster than 1991 Morgan 4. With that said, vehicle weight also plays an important factor in acceleration. 2004 Morgan Aero 8 weights approximately 267 kg more than 1991 Morgan 4. 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, 2004 Morgan Aero 8 (447 Nm @ 3600 RPM) has 312 more torque (in Nm) than 1991 Morgan 4. (135 Nm @ 2800 RPM). This means 2004 Morgan Aero 8 will have an easier job in driving up hills or pulling heavy equipment than 1991 Morgan 4.
Compare all specifications:
| 2004 Morgan Aero 8 | 1991 Morgan 4 | |
| Make | Morgan | Morgan |
| Model | Aero 8 | 4 |
| Year Released | 2004 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 1597 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 322 HP | 104 HP |
| Engine RPM | 6100 RPM | 6000 RPM |
| Torque | 447 Nm | 135 Nm |
| Torque RPM | 3600 RPM | 2800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1132 kg | 865 kg |
| Vehicle Length | 4130 mm | 4020 mm |
| Vehicle Width | 1780 mm | 1510 mm |
| Vehicle Height | 1210 mm | 1320 mm |
| Wheelbase Size | 2530 mm | 2450 mm |
