Clinched as Passenger
Crossed all state lines as passenger (for states I've been to on it)
I-24: Covered I-59 to I-65 north split and overlap with I-69. Missing KY-TN crossing as driver, and the eastern TN-GA.
I-40: Arkansas overlaps with US-67 (as passenger) and I-55, Tennessee between I-240 and I-24 east split (I-24 and I-65 overlaps as driver) as well as I-75 to TN-66. Missing Mississippi River Bridge.
I-55: Traveled in all states except LA, not been to STL. Also don't think I've driven it in Illinois, but I've driven everything from Sikeston to Jackson.
I-64: Only driven concurrencies with I-57 and I-75, have been passenger for everything between I-265 (IN) and Beckley, WV. Technically I-64 doesn't cross from IL to KY directly but was worth mentioning
I-70: Driven in Indianapolis, as well as I-270 (OH) to Washington, PA. Also drove in MD but didn't cross at Hancock (shunpiked on I-68). So technically missing 2 (IN/OH, PA/MD)
I-75: Wapakoneta-Piqua, Georgetown, KY - Rocky Top, TN. Missing Brent Spence bridge as driver, ridden full route minus Macon from Bowling Green, OH to the Florida Turnpike.
I-76: Free portion in Ohio, turnpike from I-70 west split to Harrisburg. Haven't crossed at Eastgate. All as passenger
Won't even bother trying US routes