<P> Front seats have active head restraints and their seat belts are equipped with pre-tensioners and force - limiters . As of November 2006 the RDX was crash tested by the U.S. National Highway Traffic Safety Administration, resulting in a perfect "5 Star" rating for driver and passenger frontal crashes, and front and rear side impacts, along with "4 Stars" for rollover . </P> <P> The Insurance Institute for Highway Safety, Highway Loss Data Institute (IIHS - HLDI) gave the 2007 - 12 RDX the grade of Good "G" for moderate overlap front test and side impact test . The grade of Marginal "M" was given for roof strength evaluation . </P> <Table> <Tr> <Th_colspan="2"> Second generation Acura RDX </Th> </Tr> <Tr> <Td_colspan="2"> 2013 Acura RDX </Td> </Tr> <Tr> <Th_colspan="2"> Overview </Th> </Tr> <Tr> <Th> Production </Th> <Td> Mar 2012--present </Td> </Tr> <Tr> <Th> Model years </Th> <Td> 2013--present </Td> </Tr> <Tr> <Th> Assembly </Th> <Td> East Liberty, Ohio, United States East Liberty Auto Plant </Td> </Tr> <Tr> <Th_colspan="2"> Powertrain </Th> </Tr> <Tr> <Th> Engine </Th> <Td> 3.0 L J30Y1 V6 (China Only) 3.5 L J35Y V6 </Td> </Tr> <Tr> <Th> Transmission </Th> <Td> 6 - speed automatic </Td> </Tr> <Tr> <Th_colspan="2"> Dimensions </Th> </Tr> <Tr> <Th> Wheelbase </Th> <Td> 105.7 inches (9 foot 6 inches </Td> </Tr> <Tr> <Th> Length </Th> <Td> 183.7 inches (16 ft 7 inches </Td> </Tr> <Tr> <Th> Width </Th> <Td> 73 inches (6 foot 7 inches) </Td> </Tr> <Tr> <Th> Height </Th> <Td> 64.2 inches (5 foot 8 inches </Td> </Tr> <Tr> <Th> Curb weight </Th> <Td> 3,717 lb (1,686 kg) (FWD) 3,838 lb (1,741 kg) (AWD) </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Second generation Acura RDX </Th> </Tr>

When did the body style change on the acura rdx