Wiltshire is an English Unitary Authority. It was created in April 2009.
| Year | All Motor Vehicles | Cars and Taxis | Road Network Total Length |
|---|---|---|---|
| 2000 | 3,081,200,000 | 2,486,100,000 | 2,893.7 miles (4,657.0 km) |
| 2001 | 3,158,400,000 | 2,558,800,000 | 2,897.7 miles (4,663.4 km) |
| 2002 | 3,250,500,000 | 2,628,000,000 | 2,902.0 miles (4,670.3 km) |
| 2003 | 3,326,400,000 | 2,680,600,000 | 2,906.3 miles (4,677.2 km) |
| 2004 | 3,328,600,000 | 2,670,300,000 | 2,920.4 miles (4,699.9 km) |
| 2005 | 3,412,300,000 | 2,733,000,000 | 2,872.2 miles (4,622.3 km) |
| 2006 | 3,490,800,000 | 2,795,300,000 | 2,930.1 miles (4,715.6 km) |
| 2007 | 3,558,300,000 | 2,833,400,000 | 2,938.2 miles (4,728.6 km) |
| 2008 | 3,511,700,000 | 2,791,100,000 | 2,934.2 miles (4,722.1 km) |
| 2009 | 3,470,400,000 | 2,773,800,000 | 2,940.5 miles (4,732.2 km) |
| 2010 | 3,461,500,000 | 2,766,700,000 | 2,944.4 miles (4,738.6 km) |
| 2011 | 3,472,300,000 | 2,774,800,000 | 2,945.2 miles (4,739.8 km) |
| 2012 | 3,473,700,000 | 2,769,800,000 | 2,950.2 miles (4,747.8 km) |
| 2013 | 3,488,800,000 | 2,768,400,000 | 2,956.8 miles (4,758.6 km) |
| 2014 | 3,637,200,000 | 2,879,000,000 | 2,963.8 miles (4,769.8 km) |
| 2015 | 3,708,200,000 | 2,921,300,000 | 2,966.9 miles (4,774.7 km) |
| 2016 | 3,818,300,000 | 2,995,600,000 | 2,975.3 miles (4,788.3 km) |
| 2017 | 3,869,700,000 | 3,031,900,000 | 2,987.5 miles (4,807.9 km) |
| 2018 | 3,862,900,000 | 3,033,000,000 | 2,988.8 miles (4,810.0 km) |
| 2019 | 3,941,200,000 | 3,097,100,000 | 2,991.6 miles (4,814.5 km) |
| 2020 | 3,049,700,000 | 2,285,900,000 | 3,006.7 miles (4,838.8 km) |
| 2021 | 3,397,100,000 | 2,564,000,000 | 3,011.3 miles (4,846.2 km) |
| 2022 | 3,610,700,000 | 2,737,700,000 | 2,899.1 miles (4,665.6 km) |
| 2023 | 3,724,100,000 | 2,837,100,000 | 2,905.3 miles (4,675.6 km) |