2009 Audi A4 vs. 2009 Audi R8

To start off, both 2009 Audi A4 and 2009 Audi R8 were released in the same year (2009). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 5,204 cc (10 cylinders), 2009 Audi R8 is equipped with a bigger engine. In terms of performance, 2009 Audi R8 (518 HP @ 8000 RPM) has 301 more horse power than 2009 Audi A4. (217 HP @ 6300 RPM) In normal driving conditions, 2009 Audi R8 should accelerate faster than 2009 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A4 weights approximately 30 kg more than 2009 Audi R8.

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 Audi R8 (530 Nm @ 6500 RPM) has 230 more torque (in Nm) than 2009 Audi A4. (300 Nm @ 3200 RPM). This means 2009 Audi R8 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A4. 2009 Audi R8 has automatic transmission and 2009 Audi A4 has manual transmission. 2009 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Audi R8 will be easier to drive especially in heavy traffic.

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