So I traded my 2015 Mazda6 Touring w/ Bose for a 2018 Mazda6 Grand Touring (base). Happy to report I got over 77K miles out of it with just a few minor inconveniences. I never even changed a single light bulb! I hope this 2018 serves me just as well. The suspension is also noticeably higher on the 2018. It provides a much softer and comfy ride, but holy wheel gap, Batman!!! The quieter interior, LED headlights, dimming rear view mirror, and significantly improved seats were well worth the trade IMO. Loving that turbo engine even though it is thirsty.