2006 Audi A4 vs. 1999 Ford O21 C
To start off, 2006 Audi A4 is newer by 7 year(s). Which means there will be less support and parts availability for 1999 Ford O21 C. In addition, the cost of maintenance, including insurance, on 1999 Ford O21 C would be higher. At 3,123 cc (6 cylinders), 2006 Audi A4 is equipped with a bigger engine. In terms of performance, 2006 Audi A4 (252 HP @ 6500 RPM) has 124 more horse power than 1999 Ford O21 C. (128 HP @ 6000 RPM). In normal driving conditions, 2006 Audi A4 should accelerate faster than 1999 Ford O21 C. With that said, vehicle weight also plays an important factor in acceleration. 1999 Ford O21 C weights approximately 20 kg more than 2006 Audi A4.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear 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, 2006 Audi A4 (330 Nm @ 3250 RPM) has 152 more torque (in Nm) than 1999 Ford O21 C. (178 Nm @ 4000 RPM). This means 2006 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1999 Ford O21 C. 1999 Ford O21 C has automatic transmission and 2006 Audi A4 has manual transmission. 2006 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1999 Ford O21 C will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 Audi A4 | 1999 Ford O21 C | |
| Make | Audi | Ford |
| Model | A4 | O21 C |
| Year Released | 2006 | 1999 |
| Engine Position | Front | Front |
| Engine Size | 3123 cc | 1596 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 252 HP | 128 HP |
| Engine RPM | 6500 RPM | 6000 RPM |
| Torque | 330 Nm | 178 Nm |
| Torque RPM | 3250 RPM | 4000 RPM |
| Engine Bore Size | 84.5 mm | 79 mm |
| Engine Stroke Size | 92.8 mm | 81.4 mm |
| Engine Compression Ratio | 12.5:1 | 11.0:1 |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1278 kg | 1298 kg |
| Vehicle Length | 4590 mm | 3610 mm |
| Vehicle Width | 1780 mm | 1650 mm |
| Vehicle Height | 1430 mm | 1440 mm |
| Wheelbase Size | 2650 mm | 2490 mm |
| Fuel Tank Capacity | 63 L | 132 L |
