when i hear IROC, i think IROC R/T:
“The R/T was the real performer, with a 224 HP intercooled twin cam 2.2 Turbo III engine only (this engine was shared only with the Spirit R/T in the US). Speed topped out at around 150 and 0-60 in around 6 seconds. Lotus developed the heads for this beast, which holds the claim for the most horsepower per cubic inch than any Chrysler engine in history!”
I am sure that information from allpar.com is a bit out of date, but that is the car that i have always wanted that involves the anagram “IROC”