The 2006 Dunlop MSA British Touring Car Championship season was the 49th British Touring Car Championship season. As in 2005, there were ten racing weekends at nine different circuits; each round comprising three races, making a thirty round competition in total.
Changes for 2006
Teams and drivers
The Triple 8-run works Vauxhall effort continued with a trio of entries in their second season with the Astra Sport Hatch. Yvan Muller left the team after six seasons to contest the World Touring Car Championship for SEAT, and was replaced by Italian veteran Fabrizio Giovanardi, a multiple champion in several European series but contesting his first season in British touring cars. Tom Chilton replaced Colin Turkington in the second car after three seasons with the Arena Motorsport-run Honda programme, while Gavin Smith spent a second season in the third car. Turkish touring car champion Erkut Kizilirmak also appeared at two rounds in a fourth entry. Vauxhall's only opposition for a sixth straight Manufacturers title came from SEAT, who replaced its trio of Toledos with a pair of new Leons. Jason Plato again headed their assault, while the second seat was alternated throughout the year between the returning James Thompson and sportscar star Darren Turner. Both drivers ran at the final meeting with Thompson using his WTCC car. Reigning Teams and Independents champions Team Dynamics ran their pair of self-developed Honda Integra Type Rs for a second year, with champion Matt Neal remaining with his family team. Scottish driver Gordon Shedden graduated from the SEAT Cupra championship to replace Dan Eaves, while Gareth Howell again appeared in a third car later in the season as he had in 2005. In its third year as an independent, West Surrey Racing continued to run its ex-works MG ZSs, in spite of and Mark Smith making their debuts in ex-WTCC BMW 320i's and Alfa Romeo 156s respectively. The championship welcomed several more entries across the course of the season. Xero Competition entered a Lexus IS200 for British GT racer Adam Jones, Quest Racing ran young Irishman Eoin Murray in the ex-works Alfa Romeo 156 he won for taking the Alfa Romeo 147 Challenge title in 2005, while Richard Marsh returned to the field racing an ex-Vic Lee Racing Peugeot 307 for Team Griffin Racing. The final two rounds saw another raft of new entries, all of which were planning full campaigns in 2007. The pair of Lexus IS200s run by SpeedEquipe in 2005 were entered by BTC Racing for Chris Stockton and Darren Dowling, while a third Lexus was fielded by Team Forward Racing for Mark Jones. Daniels Motorsport made a second late-season appearance with their Astra Coupe, with Nick Leason at the wheel.
Other changes
In 2006, the number of grid places to be reversed for race three’s starting grid will vary between six and ten. The actual number will be unknown at each race meeting until it is randomly drawn by the winner of race two, immediately after that race. This was introduced to replace the previous season's rule of reversing the top ten finishers to set the grid for race three, as this had seen drivers deliberately trying to drop to tenth place in race two in order to secure pole for race three.
The base-weight of BTC-spec cars will increase to 1175 kg
Cars of those who enter the BTCC late, or dip in and out of the championship, will be penalised with a maximum success ballast at their first meeting or on their return. The ballast amount will subsequently reduce in the second and third meeting in which that car competes.
