Under a deal with UK Athletics the successful athletes will get to choose their new sports car from the manufacturer.
Track and field stars will also get cash awards of £5,000, £4,000 or £3,000 for gold, silver and bronze medals respectively in a deal with Norwich Union.
Other sponsors will ensure they get magnums of gold, silver and pink champagne depending on the colour of their medal.
Cash awards are even higher in judo where a £20,000 bonus is on offer to a gold medallist, £10,000 for silver and £5,000 for bronze.
And in sailing sponsors are offering cash prizes of up to £10,000 for British medallists.
The British incentive schemes follow ones introduced by other countries and Russian competitors are believed to have been promised £50,000 for winning a gold medal.
Britain is aiming to finish eighth in the medal league table in Beijing, two spots higher than it achieved in Athens in 2004, and prizes are seen as a fitting reward for the training put in by Olympic athletes.
The rewards are still small compared to other sports, including cricket where the England Twenty20 team have been promised £500,000 each if they win one match in Antigua in November.
