Xtrac Limited, also known as Xtrac Transmission Technology, is a British engineering company founded in 1984 by the former Hewland engineer Mike Endean to make 4WD systems and gearboxes for rallycross and later rally and racing cars. From Wikipedia
Orders are open at £2.45 million plus taxes, with the first 12 clients invited to an exclusive Open Doors programme for behind-the-scenes project access.