Brits are baffled by car jargon.

Terms such as PCH, range anxiety, and supercharger leave seven in 10 people scratching their heads, according to a new survey.

In fact, almost a quarter (24 percent) have even walked away from buying a new or used vehicle because they didn’t understand the salesperson’s terminology.

The study of 2,000 adults revealed that 54 percent don’t have a clue what a PHEV – plug-in hybrid electric vehicle – is, with 34 percent feeling out of their depth when asked about anything other than petrol or diesel motors.

Only 24 percent understand the term ‘brake horsepower,’ while ‘fuel injection’ leaves 21 percent of people bewildered.

It also emerged just under six in 10 adults said a lack of understanding of such phrases leaves them with less confidence when it comes to buying a used vehicle.

The research was carried out by CarStore, which has created an online car jargon buster to help equip buyers to make informed, unpressured decisions.

It also emerged that 74 percent would take a friend who knows more about cars to a garage to look at vehicles they are considering buying.

Dad was the top choice for 25 percent of those, followed by a brother (17 percent) and mum (12 percent).

Top 20 car terms Brits don’t understand

PCH (personal contract hire)

PHEV (plug-in hybrid electric vehicle)

EPS (electric power steering)

PCP (personal contract purchase)

A-pillar

ISOFIX

Range anxiety

Differential