The all-new Toyota Prius Plug-in hybrid will get its UK debut at the MPG Marathon next week, months before its on-sale date next spring.

The prototype will enter the event directly from Toyota’s stand at the Paris Motor Show.

Arriving directly from Toyota’s stand at the Paris Motor Show, the newcomer is based on the latest generation Prius, but adds an 8.8kWh mains-rechargeable battery pack, offering a range of more than 30 miles.

As a result, pre-homologation figures indicate CO2 emissions of 22g/km and returns 282.5mpg on the combined cycle for plug-in hybrids – a combination of that longer electric range, and a more efficient hybrid system once that has been used up.

Neil Broad, Toyota’s General manager of fleet and remarketing, said: “As pioneers and global leaders in hybrid technology as well as the first manufacturer in the world to introduce Plug-in hybrid, the second generation Prius Plug-in raises the bar in terms of vehicle efficiency,” said

It joins an entry list with entries including the Ford Mustang V8 and the University of Birmingham’s hydrogen fuel cell powered Hyundai ix35, as the event introduces a series of categories recognising efficiency across different types of vehicles.

Event organiser, Jerry Ramsdale, said: “We’re delighted that Toyota has taken the opportunity to demonstrate its future technology on the event, ahead of its UK on-sale date. It goes to show how much the MPG Marathon has become recognised by the industry as a shop window into the world of efficient low and zero emissions vehicles.

“It’s astonishing to think how far cars have come since the event began, and this is a perfect example of how they’ve grown to be cleaner and greener.”

Sponsored by ALD Automotive, RAC Business and Crystal Ball, a provider of fleet management and telematics systems, the MPG Marathon takes place on the 18th and 19^th October, based out of Heythrop Park Resort in Oxfordshire. Competitors will plan the most efficient routes across the heart of the country, including a visit to the Silverstone circuit.

To find out more about the event, or to enter, go to thempgmarathon.co.uk