In a drag race challenge, three Audi models with Quattro all-wheel drive systems were tested on a wet runway: the RS3 Performance, RS5 Competition, and RS7. The RS3, powered by a 2.5L turbocharged engine with 407 horsepower, faced off against the RS5's 450 horsepower V6 engine and the RS7's 600 horsepower 4L twin-turbo. Despite the challenging conditions, the RS7 won the quarter-mile race with a time of 11.9 seconds, while both the RS3 and RS5 finished in 12.3 seconds. Additional tests included rolling races and a brake test from 100 miles an hour, with the RS7 consistently outperforming the others, showcasing its superior power and traction.
Here are the key facts extracted from the text:
1. Three Audi RS cars participated in a drag race: RS3, RS5, and RS7.
2. The RS3 has a 2.5-liter turbocharged five-cylinder petrol engine with 407 horsepower.
3. The RS5 has a 2.9-liter V6 engine with 450 horsepower.
4. The RS7 has a 4-liter twin-turbo V8 engine with 600 horsepower.
5. The RS3 has a seven-speed dual-clutch automatic gearbox with launch control.
6. The RS5 has an eight-speed automatic gearbox.
7. The RS7 has an eight-speed Tiptronic gearbox.
8. The RS3 weighs under 1.6 tons and costs around £65,000.
9. The RS5 weighs 1,695 kilograms and costs around £85,000 in the UK.
10. The RS7 weighs over two tons and costs around £120,000 in the UK.
11. The cars were racing on a wet runway with standing water.
12. The RS3 was on semi-slick tires, which were not ideal for the wet conditions.
13. The cars did multiple drag races, with the winner being the RS7 in most cases.
14. The RS5 was the closest competitor to the RS7, with the RS3 trailing behind.
15. The cars also did a rolling start race from 50 miles per hour, with the RS7 winning again.
16. The cars did a brake test from 100 miles per hour, with the RS5 winning by a small margin.
17. The event was organized with the help of Audi Sport.
Note that some of the information, such as the drivers' comments and reactions, has been excluded as it is subjective and not purely factual.