Crazy self-driving Rinspeed XchangE concept for Geneva 2014 debut

You can rely upon Swiss concept specialists Rinspeed to release something suitably crazy on the run up to their home Geneva Motor Show – and 2014 is no different, it appears. This is the Rinspeed XchangE, a self-driving autonomous car that shows "what will move us tomorrow," according to the firm; it’s "the office and living room on wheels." Natch. Please click on the image above to read more about the 2014 Rinspeed XchangE concept

Toyota NS4 Advanced Plug-in Hybrid Concept

The Toyota NS4 Advanced Plug-in Hybrid Concept marks another step in the recent revival of the company's design direction. Its silhouette is almost identical to the FCV-R concept unveiled in Tokyo, with a soft transition through hood, screen and roof, through to the high rear deck. This has become the visual identifier for hybrid cars of late.

Video: Track-day fun in the Lexus LFA

As promised, the third installment in our supercar video extravaganza--after the Chevrolet Corvette Z06 and the Porsche GT2 RS--gives you the lowdown on the hyperexotic Lexus LFA and its insane 552-hp V10 powerplant. Best described by senior editor for motorsports Mac Morrison as "shrieking like a melting witch," the Lexus LFA emits a wail unlike anything this side of a Formula One racer, and its performance isn't too far off that mark, either. Check out the walk-around and some on-track fun, then come back for the VBox lap on Friday.