Quattro Audi tire and wheel sizes
The Quattro Audi was approved in Switzerland between 2007 and 2015 with tires from 225/40R18 to 305/30R19 on 18″, 19″ wheels. The most common sizes are 235/35R19, 295/30R19, 235/40R18. Some versions use different sizes front and rear (staggered fitment).
Sizes differ by engine, trim and market. Confirm with the tire placard (usually on the driver's door jamb), the owner's manual or the vehicle registration papers before buying tires or wheels.
Most common sizes
Quattro AUDI R8 (2007–2015) type 42
10 approved versions, e.g. AUDI R8 5.2FSI, AUDI R8, AUDI R8 5.2Spyder, AUDI R8 Spyder.
| Tire size | Axle | Load / speed | Rim and offset | Versions |
|---|---|---|---|---|
| 235/40R18 | Front & rear | 95W | 8.5Jx18 ET42 | 3 |
| 285/35R18 | Front & rear | 101W | 10.5Jx18 ET55 | 3 |
| 235/40R18 | Front | 95Y | 8.5Jx18 ET42 | 7 |
| 285/35R18 | Rear | 101Y | 10.5Jx18 ET50/55 | 7 |
| 235/35R19 | Front & rear | 91W | 8.5Jx19 ET42 | 3 |
| 295/30R19 | Front & rear | 100W | 10.5Jx19 ET55 | 3 |
| 235/35R19 | Front | 91Y | 8.5Jx19 ET42 | 10 |
| 295/30R19 | Rear | 100Y | 10.5Jx19 ET55, 11Jx19 ET50 | 10 |
| 305/30R19 | Rear | 102Y | 11Jx19 ET50 | 10 |
Quattro Audi RS3 (2011–2012) type 8P
5 approved versions, e.g. Audi RS3.
How to read this table
Rim and offset uses the European notation: 7Jx17 ET45 is a 7-inch wide, 17-inch diameter wheel with a 45 mm offset. "Versions" is how many approved versions list that size — a rough guide to how common it is. Load / speed is the most frequent service description (for example 91V) among them; your car may require a higher one.
Showing 15 of 28 approvals: rare special versions are left out to keep the page readable. Records were read from the German-language text and checked against the French text; 100 % matched exactly.
Source: Swiss Federal Roads Office (FEDRO/ASTRA), open government data. Original data (downloaded 2026-09-29). Data processed by us; errors in processing are ours, not the publisher's.