MIRA's wind tunnels were not used to develop the car because the slender aspect ratio of the car made it difficult to get a wind tunnel with a rolling road long enough to take the extreme wheelbase. A scale model could have solved this problem but the team knew that by reducing the scale, the windspeed would need to increase commensurately. With a car set to travel at over 350mph at 1:1, this would require wind speeds of 700+mph for a half scale model ! Compressibility effects at such wind speeds would render the results inaccurate.

JCB DIESELMAX was JCB Chairman Sir Anthony Bamford's brainchild, born of his desire to showcase the extreme performance of the JCB444 diesel engine which normally powers the company's backhoe loaders and Loadall telescopic handlers. After watching the record-breaking runs he said: "We have proved that we have the world's fastest diesel car and engine. The JCB DIESELMAX team has worked at times in adversity and faced numerous heartaches with fortitude. These record-breaking successes prove to the world the excellence of British engineering and teamwork."