Can anybody tell me if my smart's rearend is posi-traction or limited-slip? I am trying to find out how well it will go in a Pa. winter. Thanks.

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Comment by Dave S on August 30, 2008 at 3:43pm
I believe that "posi-traction" is simply a GM term for "limited-slip." In other words, they're the same thing. Both are a mechanical means to minimize wheel spin that is valuable principally on high powered vehicles.

The smart (and others) uses electronic sensors, the braking system, and computeized controls to not only virtually eliminate wheel spin but also to maintain directional stability (Electronic Stability Control - ESC). Additionally, the smart is rear engine putting more on the vehicle's weight over the drive wheels (like the old VW Bug). Therefore, I'm sure you'll find the smart is an excellent vehicle in winter driving. This seems to have been born out by many Canadian bloggers who have witnessed to its excellent performance.

Comment by I'm Bill.. my smart is Annie on August 30, 2008 at 12:02am
Raise the rear wheels off the ground, put your car in neutral, turn one of the rear wheels with your hand... IF the other rear wheel turns in the SAME direction, its posi. If it turns in the OPPOSITE direction, its a single track axle. I've never read anywhere about the smart having a POSI rear and its not on the option list.. I'd be very surprised if it has one. Let me know.. THANKS

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