Some of the Model 3RCs look to have maybe too stiff a spring in the rear suspension for being driven by one person. The car moves when a bump is crossed and does not damp out as fast as I would expect. I wonder if this is to make it work great when there are 5 people on board. I know nothing about air suspension (except on mountain bikes)... it is great for tuning the suspension for different weights, but you have to have negative air and positive air for small bump compliance... Do cars with air suspension ride better? Has anyone else noticed any untoward motion in the RC videos? A 2013 Accord had a terrible problem with this: 2013 Honda Accord Review | Best Car Site for Women | VroomGirls It would hurt Tesla if the hype machine ran over the importance of ride quality. If any RC candidate is near Legacy northbound, north of 121 (I think that is Frisco) just west of the IKEA store, please drive that section at 35 mph to see how it does. Honda Fit aced it. 2013 Honda Accord failed miserably. It matters to Tesla.