Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Year | Entrant | Class | Chassis | Engine | Tyres | Rank | Points |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1999.0 | Audi Sport Team Joest | LMP | Audi R8R | Audi 3.6L Turbo V8 | M | 52nd | 20.0 |
| 2000.0 | Audi Sport North America | LMP | Audi R8 | Audi 3.6L Turbo V8 | M | 3rd | 232.0 |
| 2000.0 | Audi Sport North America | LMP | Audi R8R | Audi 3.6L Turbo V8 | M | 3rd | 232.0 |
| 2001.0 | Audi Sport North America | LMP900 | Audi R8 | Audi 3.6L Turbo V8 | M | 1st | 202.0 |
| 2002.0 | Audi Sport North America | LMP900 | Audi R8 | Audi 3.6L Turbo V8 | M | 4th | 206.0 |
| 2003.0 | ADT Champion Racing | LMP900 | Audi R8 | Audi 3.6L Turbo V8 | M | 18th | 22.0 |
| 2004.0 | ADT Champion Racing | LMP1 | Audi R8 | Audi 3.6L Turbo V8 | M | 13th | 22.0 |
| 2005.0 | ADT Champion Racing | LMP1 | Audi R8 | Audi 3.6L Turbo V8 | M | 1st | 182.0 |
| 2006.0 | Audi Sport North America | LMP1 | Audi R10 TDI | Audi 5.5L Turbo V12 ( Diesel ) | M | 5th | 80.0 |
| 2007.0 | Audi Sport North America | LMP1 | Audi R10 TDI | Audi 5.5L Turbo V12 ( Diesel ) | M | 4th | 175.0 |
| 2008.0 | Audi Sport North America | LMP1 | Audi R10 TDI | Audi 5.5L Turbo V12 ( Diesel ) | M | 3rd | 156.0 |
| 2010.0 | Drayson Racing | LMP1 | Lola B09/60 | Judd GV5.5 S2 5.5L V10 | M | 12th | 46.0 |
Question:
What Chassis ranked 18th?
Answer:
Audi R8