i would have to say that a s10 pickup with a 350 would have the speed and power to out run the cops. if you put vette suspension in it with the irs posi out back itwould helpthen camaro r/s springs because of the variable spring rate. plus you would have less to armor plate so itwould keep the weight down. as for the other guys they could split up, say two people per truck, split up meet back in another location.
or go with a big 4wd if you live in the sticks, cut accross a field, the cops wont get far
either way use a stolen or fake plate and get the vehicle painted if you keep it or torch it if you dont to get rid of prints and hair/fibers
remember that the bank will know the numbers on the money so launder or spend it as soon as possible