BMW and MINI customers are also encouraged to comment on their experiences via the Retailer website, where their views are published without editing, so long as there are no offensive words or language.

In the past year they have received 100,000 comments and that number is rising, with mainly positive responses from customers.

Speaking about the BMW star rating system, general manager of corporate sales, Matt Bristow said:

“The Five Star Retailer rating with attendant comments section and the BMW Group Genius programme are two bold steps towards fully transparent and trustworthy customer service.

“For a customer to be able to openly rate, in words and numbers, the customer service they receive from a Retailer is revolutionary in an industry that usually likes to keep such things close to their chest.”