Tesco has refused to comment on suggestions it is planning to sell used cars, dismissing them as "rumours and speculation".
There had been suggestions the retailer was planning to launch an online operation.
But today a spokesman said: "Every week you hear that Tesco is planning something. Last week it was we're moving into Vietnam, this week we're going to sell used cars. We will not comment on rumours and speculation."
Tesco has this month announced a partnership with Blackcircles.com to sell tyres through checkout promotions and referrals.