It is a moot point. Having seen (but not driven) model S, I can&#x27;t say it looks big enough to warrant comparison to a 7-series, and even then latter is 1800kg [0], so Model S is still 17% heavier or causing 1.85 times road wear.<p>Point about trucks stands of course, as you&#x27;ve pointed in the other comment. 3-4 orders of magnitude more road wear - that&#x27;s crazy! I wonder how does that translates to truck road taxes.<p>[0] <a href="http:&#x2F;&#x2F;www.bmw.com&#x2F;com&#x2F;en&#x2F;newvehicles&#x2F;7series&#x2F;sedan&#x2F;2015&#x2F;showroom&#x2F;technical_data.html" rel="nofollow">http:&#x2F;&#x2F;www.bmw.com&#x2F;com&#x2F;en&#x2F;newvehicles&#x2F;7series&#x2F;sedan&#x2F;2015&#x2F;sho...</a>