Who do you think dies in the car?
Is this between Lincoln and Michael ?
No.. it's out of all the escapers.
process of elimination time:
Lincoln - he has to live or they lose the president storyline. He's as safe as can be.
Michael - New main character. He's pretty safe.
Teabag - Newly re-attached arm, out in search of the $$$, He's got to live at least until a confrontation with the rest of the inmates.
Abruzzi - The "Maybe we'll see eachother again" foreshadow was a little cheezy, but it means there's more in store for the mob boss.
Tweener - Also shown to be on the road to the money. My guess is him and Teabag get there first.
Haywire - Hasn't been shown since the escape. They won't let him die in the first sight of him since they left the prison.
That leaves Franklin and Sucre. Between the two I'd bet on Sucre because he's a more sympathetic and less interesting character. They probably want to show the trainwreck when its shown that Franklin wasn't actually in Iraq.