Dorset is an English Unitary Authority. It was created in April 2019.
| Year | All Motor Vehicles | Cars and Taxis | Road Network Total Length |
|---|---|---|---|
| 2019 | 2,624,900,000 | 2,044,900,000 | 2,539.1 miles (4,086.3 km) |
| 2020 | 2,043,000,000 | 1,523,200,000 | 2,542.7 miles (4,092.1 km) |
| 2021 | 2,323,300,000 | 1,748,200,000 | 2,545.1 miles (4,096.0 km) |
| 2022 | 2,390,600,000 | 1,815,900,000 | 2,395.3 miles (3,854.9 km) |
| 2023 | 2,461,900,000 | 1,876,800,000 | 2,401.4 miles (3,864.7 km) |