The maximum speed the cars will be able to achieve will be 25mph". Completely impractical. I'm guessing this is only aimed at people who never leave a single huge city - and it's probably not fit for that purpose. I only live 10 miles from where I work, but the minimum speed on the interstate is 45mph (and you'll get rear-ended if you drive that). Even taking the feeder road, 25mph is half the speed of moving traffic.