A whole new 80 level map awaits!<br>Concrete on the map is cheaper and more plentiful, but traffic is worse! Luckily we&#39;ve invented toll booths to earn some extra efficiency points.<br><br>And at long last, Undo technology has been invented!<br><br>And finally, your best scoring designs will be saved while you work on potential improvements. You can restore your highest scoring design at any time.