Class 1: Hypercars - Top end cars that will dominate everything else (Besides X1)
7.65 - Bugatti Veyron 16.4 '09 (Trap 170mph, Epic Launch)
7.9 - (FGT) Any of the Formula cars (Trap 170-180mph, Bad Launch)
7.85 - Suzuki Escudo Dirt Trail Car '98 (Trap 165mph, Decent Launch)
Class 2: Street Hypercars - Non-Ridiculous cars that are still very good.
8.45 - Nissan GT-R SpecV '09 (Trap 155mph, Epic Launch)
8.3 - Dodge Viper SRT10 ACR '08 (Trap 164mph, Good Launch)
8.3 - Audi Le Mans Quattro '03 (Trap 157mph, Very Good Launch)
8.45 - Ferrari Enzo '02 (Trap 168mph, Good Launch)
8.45 - Ford GT (No Stripe) '05 (Trap 163mph, Amazing Launch for an RWD)
8.5 - Tommykiara ZZII '00 (Trap 156mph, Very Good Launch)
8.45 - Dodge Viper SRT10 Coupe '06 (Trap 160mph, Good Launch)
8.6 - Dodge Viper GTS '02 (Trap 157mph, Good Launch)
8.45 - Dodge Viper SRT10 '03 (Trap 159mph, Good Launch)
8.5 - Chevrolet Corvette ZR1 (C6) RM '09 (Trap 162, Good Launch)
Class 3: Sub Street Hypercars - Still fast cars but can't compete with the cars in Class 2.
*8.7 - Chevrolet Corvette ZR1 (C6) '09 (Trap 159mph, Good Launch)
*8.8 - Chevrolet Corvette Z06 (C6) '06 (Trap 157mph, Good Launch)
*8.75 - Nissan GT-R Concept (Tokyo Motor Show 2001) (Trap 150mph, Epic Launch)
*8.6 - Audi R8 5.2 FSI Quattro '09 (Trap 153, Great Launch)
8.85 - McLaren F1 '94 (Trap 165mph, Bad Launch)
8.75 - Cadillac Cien Concept '02 (Trap 165mph, "Meh " Launch)
8.6 - Audi Nuvolari '03 (Trap 152mph, Good Launch)
8.7 - Pagani Zonda C12S 7.3 '02 (Trap 158mph, Decent Launch)
8.7 - McLaren MP4-12C '10 (Trap 159mph, "Meh" Launch)
8.85 - Nissan Skyline GT-R V-Spec II Nur '02 (Trap 149mph, Great Launch)
8.9 - Audi RS6 (NOT TESTED)
8.8 - TVR Cerbera Speed 12 (Trap 167mph, Bad Launch)
9.3 - Mercedes SL 65 AMG(R230) (NOT TESTED)
8.8 - Lamborghini Murciélago LP 670-4 SuperVeloce (Trap 152mph, Good Launch)
8.8 - Mercedes SL 600 (R230) '04
8.8 - Mercedes SLR McLaren '09
That took a while
Cars marked with the asterisk aren’t run in although fully upgraded and some of the cars (especially class 3) only have basic drag tuning and aren’t fully felted
I must also admit to not getting as big a gain (over stock) from tuning 4x4 as FR/MR cars.
I have added the merc’s but I’m not a big fan… only 5 gears and relatively heavy. We would need more times to be sure, but I would suggest the SL 65 at 9.3 sec doesn’t even make class 3 although the SL 600 and SLR would make it.
EDIT: picked wrong Escudo (retested)