1999 Audi A4 vs. 2009 Mercedes-Benz SL
To start off, 2009 Mercedes-Benz SL is newer by 10 year(s). Which means there will be less support and parts availability for 1999 Audi A4. In addition, the cost of maintenance, including insurance, on 1999 Audi A4 would be higher. At 5,980 cc (12 cylinders), 2009 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz SL (604 HP @ 4800 RPM) has 342 more horse power than 1999 Audi A4. (262 HP @ 5800 RPM) In normal driving conditions, 2009 Mercedes-Benz SL should accelerate faster than 1999 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Mercedes-Benz SL weights approximately 550 kg more than 1999 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1999 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Mercedes-Benz SL. In wet, icy, snow, or gravel driving conditions, 1999 Audi A4 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, 2009 Mercedes-Benz SL (1,001 Nm @ 2000 RPM) has 601 more torque (in Nm) than 1999 Audi A4. (400 Nm @ 3600 RPM). This means 2009 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 1999 Audi A4. 2009 Mercedes-Benz SL has automatic transmission and 1999 Audi A4 has manual transmission. 1999 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Mercedes-Benz SL will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1999 Audi A4 | 2009 Mercedes-Benz SL | |
| Make | Audi | Mercedes-Benz |
| Model | A4 | SL |
| Year Released | 1999 | 2009 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2671 cc | 5980 cc |
| Engine Cylinders | 6 cylinders | 12 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 5 valves | 3 valves |
| Horse Power | 262 HP | 604 HP |
| Engine RPM | 5800 RPM | 4800 RPM |
| Torque | 400 Nm | 1001 Nm |
| Torque RPM | 3600 RPM | 2000 RPM |
| Fuel Type | Gasoline | Diesel |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1400 kg | 1950 kg |
| Vehicle Length | 4480 mm | 4540 mm |
| Vehicle Width | 1740 mm | 1820 mm |
| Vehicle Height | 1420 mm | 1300 mm |
| Wheelbase Size | 2620 mm | 2570 mm |
| Fuel Tank Capacity | 60 L | 80 L |
