More than than 2,500 delegates will be at the Millbrook Proving Ground in Bedford today for what is the biggest Low Carbon Vehicle event in the country.
It's the eighth year it's taken place and showcases new green technologies.
There will be a number of low carbon vehicles on site for visitors to take part in Ride & Drives. Also an address from Rt Hon Anna Soubry, Minister for Small Businesses, Industry & Enterprise.
Motor industry experts from all over the world have been converging on Bedfordshire for the annual Low Carbon Vehicle event.
The event, which showcases the latest in green vehicle technology and energy efficiency, is where those in the business gather to talk tech and take a ride.
LCV is now in its seventh year and it's being hosted by Millbrook in Bedfordshire, a 700 acre site used by all the major car companies and the MoD to test and develop cars.
By 2040 experts say pretty much all of us will be driving around in electric, bio-fuel or hydrogen powered cars. And in the not too distant future with autonomous vehicles already being developed, they too could be driving us.
A 47-year-old man has died in a collision at the Millbrook Proving ground. The accident happened yesterday (July 3) morning.
Four passengers were also in the car and were taken to Bedford Hospital with various injuries, none of which are life threatening. The driver, who was from Swindon, died at the track.
The test track, near the village of Marston Mortaine, is used by a variety of car manufacturers.