Automobile Magazine, writes reader Eloking, reports that the highest-end of the Tesla line has just gotten a boost upward, thanks to a new "Ludicrous Speed" mode: In combination with a newly optional 90-kWh battery pack, this new mode brings 0-60 mph acceleration down to 2.8 seconds (from a quoted 3.2 seconds for the P85D model). This larger battery pack is offered as an upgrade from the existing 85-kWh model, creating new 90, 90D, and P90D models. It doesn't come cheap, though: this isn't just a firmware update to download. For P90D owners, the upgrade costs $10,000 (including the larger battery); P85Ds can be upgraded for half that price.
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