|Few cars have made as spectacular an introduction as the RS4 when it was revealed at a special ceremony in Audi’s hometown of Ingolstadt. A bright yellow RS4 appeared at the top of an icy ski ramp and charged down to the bottom, dramatically spinning in circles in front of spectators in the snow with the 4.2-liter V8 howling. Then, nonchalantly, the RS4 turned around and headed back up the steep, slippery incline without any trouble whatsoever. That’s the beauty of Audi’s quattro all-wheel drive, which provides stupendous grip (and in this application, a rear-wheel bias) to complement the powerful engine fitted into the relatively compact sedan. Aggressively flared fenders, extra air intakes, and of course a more powerful engine tune separate it from the already high-performing S4 upon which it is based. Of course, you don’t need to have a ski ramp with a crowd of screaming Audi fans egging you on to enjoy the RS4—it’ll be happy to demonstrate its cornering prowess and substantial acceleration on any track you can throw at it.|
— Official description 
The second generation Audi RS 4, codenamed B7, replaces the B5 generation that was last produced in 2001. It turned away from forced induction by switching to a high-revving naturally aspirated V8 engine, and also expanded the body style selection from previous models by offering saloon and convertible options.
Its 4.2 litre V8 engine features FSI direct injection, two double overhead camshafts with variable valve timing and operates with a compression ratio of 12.5:1 for increased efficiency. It produces 420 hp (313 kW) at 7800 rpm and 317 ft·lb (430 N·m) of torque at 5500 rpm. Its all-wheel drive system is linked with a six-speed manual gearbox and equipped with a Torsen centre differential.
It was manufactured from 2006 to 2009 and is the first model generation to be sold in North America. For the 2011 model year, Audi introduced the two-door RS 5 Coupe to replace the RS 4, although a RS 4 successor was released in 2012.
The RS 4 is a sports saloon with all-wheel drive that weighs 3638 lb (1650 kg) - 3685 lb (1671 kg) in Forza Motorsport 2, making it similar to the 2008 BMW M3 Coupé in that aspect. However, due to a longitudinally mounted 4.2 litre V8 engine, it has 58% of its weight sitting on the front axle, which is a higher value than on its predecessor and makes it more prone to understeer than its competitors.
With a 0 to 60 mph (97 km/h) time in 4.7 seconds and 0 to 100 mph (161 km/h) in 11.2 seconds, the RS 4 has decent acceleration, although it is hardly quicker than its predecessor except for top speed, which is 191 mph (307 km/h).
Purchase from the Autoshow for 42,000 CR
Performance & Body Style
|Conversion - Engine|
|V10 - R8 '10|
6.2L V8 (510 hp)
|6.2L V8 (510 hp)|
|Conversion - Drivetrain|
- ↑ "Forza Horizon 3 - Cars". forzamotorsport.net. Retrieved 08-17-2018.
- ↑ "2007 Audi RS 4 quattro Road Test Review". caranddriver.com. Retrieved 08-17-2018.
|1980s||#2 quattro S1 · #4 90 quattro IMSA GTO · Sport quattro|
|1990s||RS 2 Avant|
|2000s||#1 - #88 R8 · #2 R10 TDI · #8 TT-R · Q7 V12 TDI · R8 · R8 LMS Show Car · RS 4 · RS 4 Avant · RS 6 '03 (#1 RS6) · RS 6 '09 · S4 '00 (#1 S4 Competition, AWE Tuning SilverBullet S4) · S4 '04 · S5 · TT Coupé 3.2 quattro · TT Coupé S-Line|
|2010s||#02 - #06 A4 Touring Car · #45 R8 LMS ultra · #4 R10 TDI · #2 R15 TDI · #2 R15++ TDI · #2 R18 TDI · #1 R18 e-tron quattro · #2 R18 e-tron quattro · #1 RS 3 LMS · #17 TT RS · R8 5.2 FSI quattro (Forza Motorsport) · R8 Coupé V10 plus 5.2 FSI quattro (Team Forza) · R8 GT · R8 GT Spyder · R8 V10 plus · RS 3 Sportback (Limited Collector Edition) · RS 4 Avant · RS 5 Coupé · RS 6 Avant · RS 7 Sportback (Team Forza) · S3 Sedan (#67 S3 Saloon) · S4 '10 · S4 '13 · TT RS Coupé (Forza Motorsport) · TTS Coupé|