Song: "Car Wash"
Artist: Rose Royce
Peak position on the Cashbox Singles chart: #1
Number of weeks on the Cashbox Singles chart: 20
Weekly data:
| Week ending | Rank | Title | Artist | Label |
|---|---|---|---|---|
| November 6, 1976 | 94 | Car Wash | Rose Royce | MCA 40615 |
| November 13, 1976 | 86 | Car Wash | Rose Royce | MCA 40615 |
| November 20, 1976 | 71 | Car Wash | Rose Royce | MCA 40615 |
| November 27, 1976 | 40 | Car Wash | Rose Royce | MCA 40615 |
| December 4, 1976 | 28 | Car Wash | Rose Royce | MCA 40615 |
| December 11, 1976 | 19 | Car Wash | Rose Royce | MCA 40615 |
| December 18, 1976 | 16 | Car Wash | Rose Royce | MCA 40615 |
| December 25, 1976 | 13 | Car Wash | Rose Royce | MCA 40615 |
| January 1, 1977 | 4 | Car Wash | Rose Royce | MCA 40615 |
| January 8, 1977 | 3 | Car Wash | Rose Royce | MCA 40615 |
| January 15, 1977 | 1 | Car Wash | Rose Royce | MCA 40615 |
| January 22, 1977 | 1 | Car Wash | Rose Royce | MCA 40615 |
| January 29, 1977 | 6 | Car Wash | Rose Royce | MCA 40615 |
| February 5, 1977 | 15 | Car Wash | Rose Royce | MCA 40615 |
| February 12, 1977 | 25 | Car Wash | Rose Royce | MCA 40615 |
| February 19, 1977 | 29 | Car Wash | Rose Royce | MCA 40615 |
| February 26, 1977 | 31 | Car Wash | Rose Royce | MCA 40615 |
| March 5, 1977 | 37 | Car Wash | Rose Royce | MCA 40615 |
| March 12, 1977 | 49 | Car Wash | Rose Royce | MCA 40615 |
| March 19, 1977 | 58 | Car Wash | Rose Royce | MCA 40615 |
Rankings greater than 100 are from the Cashbox 'Looking Ahead' charts.