The Rover Sportspack wheel width and offset was a best comprimise between looks and steering geometry and in my opinion, is as good as it gets with a 6X13" wheel.
Tyre wise for the 13" wheels there are only really two choices of tyres these days and both have rim protection sidewall. It is this sidewall that is responsible for the stiffness of the tyre, not necessarilly the 'low profile'. The rim protection makes the tyre stiffer. There did use to be a good selection of tyres without the rim protection such as the Bridgestone and Dunlop, but now there really only are the two left, Yokohama or Nankang, its a 50/50 choice and they are much of a muchness, though cost is a key factor. YOu can get the Nankangs really really cheap if you shop around rather than using the big name Mini suppliers, the Yokohama's are always going to be more expensive.
Rover designed the Sportspack wheel arch to cover the wheels appropriately, like any other car in on the road. The leading and trailing edges of the sportspack wheel arches taper off , with the widest 'overhang' at the top. The rear wheels benefit from a 3/8" spacer which is only 1/8"mm more than the 1/4" spacer fitted by the factory. The fronts are not really a problem.
As for suspension cones, having used the Minispares red spot cones and Minispares Hi-Lo trumpets, I won't recommend anything else.
One other thing to consider though is that with the sportspack, if lowering the car at all, it will cause the rear tyres to scrub on the wheel arch when cornering.
Edited by Sprocket, 23 January 2018 - 12:18 AM.