I just recently went through this decision, and despite loving my 100, I did sell it and purchased a very low mileage LX570. I'm currently on a San Diego to Mt Shasta road trip and I'm loving the road manners and better power. I did replace the radiator and heater T's but the job was simple. I also did get the opportunity to compare a LC200 of the same year side by side with my LX570, and while I liked it as well, I preferred the LX's AHC for my long road trips.