What the world needs is a new People's Car,one with 'lasting design',engineered for the 21st-Century,which will look 'modern' a million years from now.
My candidate ( with modifications ) is the Koenigsegg CCXR.
Lose the wide wheels/tires,taper the body and narrow the track as was done with the 1st-gen Insight,raise the trailing edge of the roofline even with the back of the cars body,and morph the sides into the roofline for a proper Kamm aft-body.
Make it out of stamped-steel,nothing exotic.
Pre-wire it for accessories but offer it 'naked',with 'options' added at the dealer or by owner themselves.
TDI,8-speed trans.
Each year the car gets cheaper,just like the Model-T Ford.Twenty years from now,it's selling at 1/3 the price.
Weight's not an issue when the engineers synchronize the traffic lights and abolish the left turn which makes synchronization impossible.
If we can't change the way people drive we can offer efficiency through what they drive.
Like they say," When you're driving alone,you're driving with bin Laden."