More 2.4 questions...

[jeremy0711]

Is there any performance difference between the new link version and the older version which is gray? Is the link setup just for being able to run several cars off of one radio?

[Double G]

Don't think there is a performance difference. The older will not work with the newer and vise versa. Here's a link: http://www.traxxas.com/products/accessories/trx_accessories_transmitters_select.htm

[dkrhardy]

Not sure, but I think the new one has better range.