After previously announcing that development on RWD cars has paused at GM because of fears of higher fuel economy, Vice Chairman Bob Lutz has now revealed that development will resume, but the cars may have to feature more fuel-efficient engine options. The announcement came during an interview with the GM product czar on Autoline Detroit, where he said “I think we’ll wind up concluding that we should go ahead and do the cars, albeit possibly with some different powertrain options and so forth.” Smaller and more efficient engines, including possible hybrid and diesel versions, would mean that GM’s CAFE levels could meet the impending raise in US fuel economy standards.
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