http://www.thecarconnection.com/Enth...178.A8755.html
Nice photos
"A Lexus IS460? Really? That's what our sources are saying. This IS prototype, caught on the Nürburgring by a tourist from Sweden is believed to be powered by a 4.6-liter V-8.
Whatever this is powered by, the hood vents, dual exhaust, and small, integrated trunk spoiler indicate that this is no ordinary Lexus IS"