As to speed, they can go as fast as several millions of miles a minute. (pnnl.gov)
«She went miles a minute, wanted to do a lot of things and saw no reason why anybody should get in the way of social justice.» (articles.chicagotribune.com)
Any performance version looking to match similar speeds would get some form of active aerodynamics, but the potential for three miles a minute in a two tonne SUV is definitely there... (evo.co.uk)