i think there are two major concerns for someone buying in now,...

i think there are two major concerns for someone buying in now,
1. how much of this current run is still left (in terms of upside). has it got another 10c this year or a dollar worth of growth
2. given that we reached a record high in june for car sales, is that the best? is it going to become the new normal? with uncertainties surrounding a few different eco factors, how much will people demand brand new cars in the next 5 - 10 years. and furthermore, are we at peak where it will level out or is there more upside.