Alright folks, triggers have been pulled.
-I didn't get both because I don't have the garage space (just two weeks or so after High Life, I know...)
-I got the Monroe
-The decision was against my stylistic preference, but I decided the guns on the JB as well as the weirdly sloped rear end just kind of turned me off.
-I love the Miura, but really hate that silly hood scoop they stuck on the Monroe
-The Monroe is one of the best cars I've tried when it comes to being planted ridiculously firmly on the ground. Maybe it's 'cause the car sits so low, but man. The thing just begs to be pushed to high speeds so that it can be barely controllable. I love the handling, and it's also decidedly anti-fishtailing which is a dramatic change in direction from my Stinger GT.
-Overall I feel that the Monroe is the obvious performance winner of the two, but I wasn't basing my purchase on that. However, the Monroe performs so well and with such unique driving traits that I feel it's worth owning just for its ability to keep up with even the speediest (and often slipperiest) sports cars (think Obey 9F/Pfister Comet). What really killed the JB for me was as I said- those damn un-functional guns on the front.
-I am very philosophically opposed to the slats on the back of the Monroe. While accurate for the main car that they were basing off of (Miura), I do feel that rearward-bulletproof vehicle driving in the game is a pussy move.
With that said, here's some pictures:
-On a final note, the only downside to the Monroe is it's dramatically wide turn-radius. Which is actually pretty accurate for a car so low and wide.
-As stated above, the car is great at going over bumpy terrain and has surprisingly phenomenal ground clearance.