At a quick glance, the new GTR is almost identical to the Spec V GTR. But at close inspection, the 2012 GTR minor exterior changes includes a new grill, LED driving lights , revised rear diffuser and new sets of lighter wheels from Rays Eng. According to the report, the new GTR's revised rear diffuser alone improves rear down force by 10%. Well that’s significantly huge improvement and hope this minor changes can improve their lap time in Nürburgring.

Source: GTRBLOG.com