As evidenced by many new carbon fiber reinforced plastic (CFRP) parts on display at BMW Group's Innovation Day 2011 event, car manufacturers are going to great lengths to reduce the weight of their vehicles. Diet programs include innovative techniques for removing the core of wheels which are traditionally solid metal and replacing them with new, lighter, high-strength materials as seen in BMW's Naturecore wheels. For BMW, no doubt much of what was on display will find its way into their new BMW i Division of vehicles. Fore more visit World Car Fans.