Hypocrite? Eco -warrior Livia’s fleet of gas-guzzlers

She is renowned as the wife of Oscar-winning film star Colin Firth and has been leading the campaign for sustainable fashion for years.

however, on Sunday, Livia Firth’s eco-credentials took a dent as she arrived at her own Green Carpet Challenge (GCC) at London Fashion Week with her husband (pictured above) in a diesel-guzzling Audi.

Worse still, while her celebrity guests — including Anna Wintour, Victoria Beckham and Keira Knightley — were dressed in sustainably sourced outfits, many had also been chauffeured to the bash in £62,690, top-of-the-range Audi A8s, laid on for VIPs free of charge.

Livia’s campaign, which promotes ethical fashion, yesterday passed the buck on to Bafta, which was its official collaborator for the night.

A GCC spokesperson tells me: ‘Audi are the official event partner for Bafta and, as such, provide VIP transport for special events.’

This is not the first time Livia, 47, has been accused of double standards. Last year, she racked up more than 95,000 air miles — the equivalent of almost four trips around the globe — to lecture about the perils of high Street clothing.

‘We need to act responsibly in order to protect the planet,’ she once said. ‘If we don’t do this, then we are all going to destroy it.’