Brindley Honda in Cannock is mid-way through a 20 day campaign of customer special offers to mark its 20th birthday.
Celebrations started on August 10 with a family fun weekend, and the company has pledged to donate £20 to charity for every test drive taken until August 28.
Dealer principal Chris Adams said the event also coincides with the annual Honda sale, so all new and used cars have been discounted and will also have either £20 towards VED or £20 of fuel.
In aftersales, MoTs are £20 off and a 20% discount is applied to full Honda services and accessories.
"Basically what we’re offering are 20 days of SALE offers as a thank you to all of our customers old and new that have supported us over the last 20 years," he added.
Brindley Garages Group, with 13 sites in the West Midlands, was founded in Codsall in 1931 by Bill Brindley, the father of Robin Brindley, the current chairman. His stepson Che Watson is the managing director.