http://www.greencarreports.com/news/1066795_breaking-tesla-making-faster-2012-model-s-0-60-in-under-4-5-seconds "Cutting the brisk 0-60 time of the standard Model S from 5.6 second to under 4.5 seconds, the sportier version features the same 85 kilowatt-hour, 300 miles-per-charge battery pack found in the 2012 Model S Signature series. " "The additional model, complete with enhanced powertrain to cope with the additional current required for faster acceleration, will be available from launch alongside the 120 mile, 230 mile and 300 mile 2012 Model S cars." "“We’re also going to be offering aerodynamic wheels that will enable 320 mile range,” Musk told us earlier. “There were some skeptics who said we couldn’t do a 300 mile range, but we’re going to do better than that. We’re going to offer 320 mile range, as tested on the EPA 2 cycle test.”" Edit: Also mention of a Tesla 90kW charging network! Ta da! "The 90 kilowatt units will be installed by Tesla at suitable rest-stop locations or hotels alongside arterial freeways such as I-5 between Canada and Mexico. ".