You may have noticed the odd – and artificial – juxtaposition:
Cars have been getting bigger – and heavier – while engines have been getting much smaller. It's not uncommon to find engines in the 2.0 liter range in vehicles in the two ton range.
Why not appropriately sized engines – V6s and V8s – for these vehicles?
Larger, roomier – and heavier – vehicles continue to be very popular with buyers. So the car companies continue to build them. But Uncle insists (and decrees) that all vehicles must use and less less gas.
No matter what it takes – and no matter what it costs. Because the object isn't really "saving gas."