Did the film have such a great effect on car designers?
For those, who have not seen Tron: Legacy still... here is a brief summary
The son of a virtual world designer goes looking for his father and ends up inside the digital world that his father designed. He meets his father's creation turned bad and a unique ally who was born inside the digital domain of The Grid. - IMBD (www.imbd.com)
This is what Tron's vehicles looked like..
And here is the trailer ...