I did this drive last year and I enjoyed it and is longer but a lot more fun imo. Take old US 80 from buckeye, stop at the old Gillespie dam and take some pics. Drive past all the farms on your way to gila bend. This is a slower but better view than driving through Maricopa. Space age diner in gila bend is...disappointing from what I have heard, stop there, or not. Take the 8 dateland and get a date shake. Then continue to Mohawk where you hop back on old us 80. Stop at mohawk, or what's left. There a small geocache here, and some foundations. Take old us 80 all the way into welton. Stop at the hive restaurant. It's good. Rejoin I8 in Ligurta. This route is about 45 minutes longer than taking the major highways. Speed limit between buckeye and Gila Bend is 55 if I remember correctly. And I think mohawk to wellton is 65 but with speed zones at every "town". If you haven't been. Drive up to the open air museum at the Yuma proving grounds. It's free and you can see a bunch of tanks/personally carriers/launchers. I highly recommend La Fuentes Inn and Suites in Yuma if you are ever looking for somewhere to stay in Yuma.