Well... I may be slightly out of place speaking up at this point...
Regardless of tire type, a judge should evaluate the total package. That said, the total package has to be consider relative to the competition and not in a stand alone sense.
Take the Cien of our previous tuner challenge. Although it was an excellent car, the base car and the tuned car were a totally different class of car compared to the competition. Only a handful of real world cars would be comprable to the Cien in GT4. Using that Cien in a comparison with S2Ks and 2KGTs is extreme overkill and instantly puts the Cien at a disadvantage- it must be faster than everything and it has to be flawless in comparison to the competition, otherwise the total package and realization of potential may not be as great as that of another competitor.
Regarding Tires...
There should never be a Sports tire / Race tire comparison.
nd 4 holden spd
Can I vote that in the Club Racers category speed plays a larger part in judging please. Anyone can bolt up R grade tyres to a car that has less than 400hp and have a dream handler, but it won't compare for speed to a 600hp car that still handles well and has a good tune on it. And after all, race cars are built purely for speed aren't they? So speed should definitely play a role in the judging of the Club Racers
If the "less than 400hp dream handler" is capable of matching a "600hp car that still handles well" around a track then it should definately get credit for keeping up with less power.
However, when the 600hp walks away on straights, should the totally different type of race car with far less power be faulted?
This is where the problem comes up...
Race cars need to be very specifically defined by technical specifications if they are to compete in the same class.
All race car entries should handle well but if one car of the group (that is relatively closely packed in tech specs) comes out with more than 200 extra hp, the extra 200hp shouldn't get an advantage for speed.
What happens when the tester insist on using midfield (happend to me last time around I think)...
Midfield is the kind of course where a GT300 Super GT car would lose to a well driven Cien. What good is there in letting those two be compared on a course like Midfield? Can that really tell you anything about the handling of the car?
Now consider that with R tires on the Cien, does not become more insane?!
When Racing tires are involved, the cars need to be properly matched on technical specifications.
Also keep in mind that "speed" can be more than just lap times or top gear mph/kph.
Bottom line:
I would be careful as a judge in the Racing class (although I'm not going to be judging the racing class).