Vintage HotShot mk2?

[RCRod]

Hi all, I just got this Vintage HotShot which is in pretty good condition. I know by the bumper it's not a Mk.1 and I wanted to know the difference between a Mk.2 and a Mk.3 if there is any. 

[NWarty]

I don't have anything to add other than, ho-lee-smokes that's a beautiful survivor!!! 

[Superluminal]

What are the two silver things with wires coming out???

[RCRod]

Those are heat sinks for the mechanical speed controller, ESC's were rare and very expensive back in the mid 80's 

[Superluminal]

I was hoping you would say tesla coils that fire out lightning as you drive along

[kasparov]

Apparently the difference between an early Mk2 and some of the later ones is:

 

"

The early thing is the Mk1 floating resistors and the early Mk1 front lower wishbones with all triangle shaped holes. You can’t find these on later models anymore.

 "