Thanks everyone. I've actually test drove the new Colorado many times. I like how you sit higher and I'm impressed with the turning radius. I also like the bed much better, as it seems deeper.
But when I go back to my '11 I5 Colorado, for some reason, I can feel the drive better. I don't know if that makes sense, but the new Colorado is almost like it's too refined. On my truck, I can tell you how fast I'm going by the feel of the truck. I can also feel the road conditions just by the way the truck responds. Hmmm.. maybe it's because I've had this truck for 6 years...
I really liked the feel of the Diesel Colorado. But, I makes lots of short trips, and I hear tell the diesel won't be happy with short trips. If the diesel could handle short trips just fine, I'd probably get that.
Whenever I buy a new vehicle there is always a period of "numbness" while you get used to how the vehicle drives. Around 1500 miles in my 2017 Coly and I can say I know how it iwll react in 90% of road scenarios.