#1 for the 15 cars achievement do VIP cars and egg cars count
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#2 For the 10 skateboard achievement why are there only 6 skate boards in the shop plus the one at the bottom of the map making 7 but there 10 needed.
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#3 for the streak achievements can you kill anyone that has higher than a 2 streak or does it have to be at least a 50 streak.