Lotus has released the official images and information about the concept designed for the Hot Wheels Designer challenge. The sportscar created by Steven Crijns combines styling cues typical of Lotus models with the performance-driven philosophy of the Hot Wheels toy cars.

The Pontiac Solstice SD-290 is a single seater inspired by classic sports cars. The design features a passenger cockpit tonneau cover and a driver-side only windscreen.

Mattel's Hot Wheels has announced the results of its Designer's Challenge, a competition among six automotive manufacturers tasked with designing a futuristic car that captured the brand's core values of speed and performance.

The Mitsubishi Double Shotz Concept is the winning entry of Mattel's first Hot Wheels Designer Challenge. It was created by Gary Ragle from Mitsubishi Research and Design of America and has debuted at the 2007 SEMA Show.

GM designer Amaury Diaz talks about the design of its Hot Wheels designer's Challenge entry - the Chevroletor Concept - and shows off his own Hot Wheels collection.