Almost half of Brits admit to getting overly amorous in the back of their cars, it has been revealed.

Once the reserve of horny teenagers and dogging enthusiasts, the survey suggested that four-wheeled fornication has now become a mainstream activity.

In a recent poll, 45 percent of Brits said they had pulled over for a bit of 'how's your father' in their car.

Other places randy respondents said they had enjoyed having sex included, the kitchen table, a fairground waltzer… and the boss's desk.

If 45 percent of us are using the back of our cars for getting frisky, how come Jeremy Clarkson never mentions how good a car would be for that in his Top Gear reviews.