Gotta love what GM is doing with DI. Find me any other boosted car that doesn’t REQUIRE premium gas. The 3.6 DI in the CTS has 11.3:1 CR and runs on regular gas. I think that’s significan’t when comparing cars. Everyone wants to look at MPG. If your lexus gets 32MPG on premium and puts down 304 HP and my cts puts down 306 and gets 32MPG on regular, you are going to be paying more for gas. I wish the rags would point this ish out more seeing as so many people are fuel cost conscious.