BorgWarner, one of the largest suppliers of turbochargers, says 80 percent of all passenger vehicles in the U.S. will have a turbo by 2020. Volkswagen is discussing whether to take a stake in commercial truck maker Navistar to help it compete with Daimler in North America. The 2013 SRT Viper GTS-R racecar has just completed its first on-track test. All that and more, plus a look at the all new 2013 Scion FR-S.