Geez, dont you guys know anything??? ofc tyres dont make a difference, thats why all drag cars have really thin tyres at the front ^^.
And suspension is not the be all and end all, you just need to weld a rod from the axle to the strut, therefore you will have a better weight reduction because you also dont need a strut brace.
And if your real hardcore you can always take out 2nd and 4th gears from the gear set, because if you flatline it in first and then go straight to third and then fifth you will be faster because there are less gear changes and also you will lose about 5-10 kg for better aerodynamics.
So, That proves that tyres and suspension are not important and that with some weight reduction you can have an excellent drag car.
Deductive reasoning... got to love it!!!!