For the Volkswagen brand incentives are available ranging from £1,800 trade-in to buyers of the Volkswagen up! to £6,000 for Volkswagen Sharan buyers.
Most of the trade-ins can be of any brand of auto registered before 2010, the date when vehicles have had to comply with Euro V regulations on engine standards and cleanliness.
VW's United Kingdom scheme is a continuation of the initiative launched in Germany, which was brought in after a top level summit between politicians and the country's leading carmakers, including BMW, Daimler and Opel. Ironically, much of the controversy now around diesel followed the Volkswagen emissions-dodging scandal involving millions of vehicles worldwide. Manufacturers have already launched scrappage schemes overseas, with VW offering substantially more, a €10,000 incentive, to German vehicle owners.
Volkswagen's £10,000 off the price of a new e-Golf once the government's plug-in vehicle grant has been taken into account is the most impressive.More news: LG V30 is waterproof with an IP68 rating
Volkswagen's electric auto and plug-in hybrid models are also included in the deal.
The German carmaker has promised discounts of up to £6,000 when buying a new auto.
"We've seen a bit of a drop in the United Kingdom auto market this year after years of really accelerated growth".
However, he said it would also be important to VW that its United Kingdom competitors have similar schemes running, and VW will probably have pitched their discounts at that level in order to compete.
The Japanese manufacturer will offer savings of up to £4,000 on a new Toyota.More news: Apple's iPhone 8 event is confirmed for September 12
According to commentators though, VW's United Kingdom scheme fell short of the terms offered to drivers in its home market.
Mr Holder added that "it's not clear" what impact the VW scheme will have on vehicle sales.
It can be used on the majority of new VW models, including petrol, diesel, plug-in hybrid and full electric vehicles, so long as you order one by 31 December 2017.
Customers can get a discount of £2,000 off models including Aygo, Prius and Hilux, and £4,000 off a Land Cruiser.
AA president Edmund King said: 'The vast majority of drivers care about air quality and support scrappage schemes to encourage the take-up of cleaner, greener vehicles.More news: Windies pull off magnificent win after Hope ton
Toyota said it was offering up to £4,000 for buyers of a Land Cruiser, adding: "We go to great lengths to make sure [the old] auto is scrapped in the greenest possible way, with everything which can possibly be recycled being extracted by experts".