The 2021 450 has been awesome. I’m very pleased. The engine won’t quit. But $3K more would’ve gotten me a large under rack trunk, more back rack payload, the ability to have a rear wench (front only w/450), some more power although the 450 has plenty, extra lights, tilt feature, LinQ amenability, and numerous accessories made for the 650 and 1,000 but not the 450. Is there anything I need to do but can’t do w/the 450? A hard no. But my Ford Explorer did all I needed, but man the new Expedition has been nice. I may order the 650 although a re-design may make me wait as the current 650 has been around sine 2013 if I’m not mistaken? It is a 3 to 4 month wait in Alaska once ordered, then I could sell the 450 in July as their is a very strong used market up here.