You could end up with a car that has a dodgy history when buying from a dishonest dealer. One in three cars checked by HPI, a vehicle history check business, is found to have a hidden history.A team from BBC’s 'Watchdog' TV show investigated a dealer who was selling vehicles with known faults and cheating used-car buyers. The report revealed the dodgy sellers were also pushing prices up to well over real value. HPI warns consumers to do their homework and conduct an independent vehicle inspection in order to avoid any unforeseen complications.'PACK OF LIES'HPI's Nicola Johnson said: "This Watchdog episode reminds us how easy it is to be duped by smart sales patter and a friendly approach. Too many used-car buyers take the seller’s word at face value. This leaves them at risk of being told a pack of lies and spending good money on a car that turns out to be a nightmare on wheels."When buying from a dealer, buyers should ask to see the history and odometer checks the dealer should have conducted. If buying from a reputable dealer, consumer rights are comparable with buying from any other retail outlet.Nicola Johnson concludes: "By taking some simple precautions before signing the deal, such as completing a full vehicle history check, they will be happily driving their car a long time after the keys have been exchanged."