The head of VW cars in the UK has apologised "unreservedly" for "significantly" letting down its customers in the diesel emissions scandal.
It comes days after the American boss of VW made a 'sincere apology' over the scandal which has affected more than 11 million cars worldwide.
The head of Britain's Society of Motor Manufacturers and Traders says he has has received assurances from the car industry that emissions test rigging goes no further than Volkswagen.
Mike Hawes told MPs at the Environmental Audit Select Committee hearing that the SMMT was not lying with the emissions figures it publishes.
Volvo withdrew an app comparing cars' emissions in 2011, after being told by that the data "could not be taken seriously".
Volkswagen's US boss has admitted he was told in spring last year of the emissions cheating affecting millions of the company's vehicles.
Volkswagen could start recalling cars containing emissions cheating software in January, according to the firm's new chief executive.