Hi. I reserved the Black Diamond 4 door, but really like the 2 door too. I'm hopeful someone can explain the pros and cons of the engine differences between the 2 and 4 door models. The 2 Dr has an aluminum engine. The 4 Dr has a CGI. Mechanical buckets vs rolling finger. DI vs dual PI/DI? I've watched a number of videos and it led me to get the 4 Dr, but I'm reconsidering. Thank you.