Hi,
I've seen the Superlites on several cars and they look great. Very hard to distinguish from the Panasport Minilites. There is a vendor here on BCF offering the Superlites.
KN Minotars are a little easier to distinguish, seem to be available only in silver paint, without a bright rim, but still are a good quality wheel.
Compomotive also makes a similar 8-spoke wheel, as do Konig and American Racing (the latter two only in pretty limited sizes, I think).
There are some differences in color/finish choices offered by the various manufacturers.
None of these look exactly like the original American Racing wheels that were first used on TRs back in the 60s, but today's wheels are probably a stronger design. The main visual difference is where the spokes meet the hub. It's a bit beefier on all the modern wheels I've seen. If you are interested in making a comparison, you can probably see some of the original wheels installed on TR4 factory team rally cars at
www.revingtontr.com. Keep in mind that those originals on TR4 are a narrower wheel, too. So the wheels you get for your car will most likely have a slightly deeper "dish" to them.
On TR6, I'd be very tempted to use +1 sizing: i.e., 16x7 wheels with lower profile (60 or 55-series, depending upon the width chosen) tires. Careful tire selection might give you very close to the same tire height and outside diamter as the original 15xwhatever tires, which will help keep the speedometer reasonably accurate.
/ubbthreads/images/graemlins/cheers.gif