HR Owen assembled £3 million worth of supercars at Millbrook Proving Ground in order to give customers a test drive with a twist.

The world-famous automotive development facility, in Bedfordshire, welcomed the very best of the HR Owen’s fleet as prospective clients were treated to a day of adrenaline-fuelled, high-performance driving.

Tom King, marketing director for HR Owen, said: “Enabling customers to sample these stunning cars away from the road is just another way that HR Owen cements its status as the number one dealer group in the world.

“Having our brands together in one place was a great experience, while Millbrook was perfect to really put the cars to the test.

“People come from around the world to experience the HR Owen way, and our group testing event with 16 of the best cars around sums up exactly why we’re the best.”

A one-of-a-kind BAC Mono single-seater supercar made a debut appearance under the control of HR Owen and was joined by two Ferraris, including a 488 GTB, two Aston Martin DB11s, two Lamborghini Huracán Spyders and the Rolls-Royce Wraith Black Badge.

Bentley’s new Continental Supersports – the most powerful Bentley ever made – was also driven by prospective HR Owen customers for the first time.

Two of the most desirable new SUVs in the world, the Bentley Bentayga and Maserati Levante, also hit the track and the off-road course.

Taking the total value of cars on the day past the £3million-mark were the Bentley Continental GT and Maserati Ghibli.