I've got pretty well all the reviews of them from when they came out and were new. Inevitably they were often compared to the Sapphire Cosworth and Mercedes 190 2.3/2.5-16
Here's the one from Fast Lane mag -> Click

Double click on the pages to enlarge

Here's the Autocar review -> Click

I've got loads more reviews, comparisons, detailed reviews on the Evos, Evo Sports etc..... if you want to read more