Huge side blind spots make lane changes a gamble. Uncomfortable seats. Dashboard angled steeply away from driver so in sunlight you cannot see the digital readouts. The 4 dash A/C vents almost close when you aim them to blow air at you. And under powered - if you think the 300hp stat means this car will outperform a 265hp V8, a test drive will show this car powers more like a 210 hp V6 costing $15K less. On the plus side, solid luxurious quiet ride and decent handling. Perfect for soccer moms. Not for inner city driving where you need power to zoom up hills and need to be aware of surrounding traffic in case of quick lane changes.
Build quality and reliability, all the electronic gizmos a car could ever have to keep you entertained for months while you try to remember how to use voice command to activate them, and then wonder why they don't work like they did last time, luxurious looking interior even if seats are uncomfortable.
Bigger V8 engine, get rid of blind spots, adjustable head rests, body colored bumpers (cheap plastic unacceptable in a $40K+ car).