First of all everyone is not going to do this - they haven't in the past. A few points...
If you like the car and you tell others they will most likely buy it at full cost or a least with a profit still on it.
Servicing the car will most likely depend on the manufacturer's own part on which they make a profit.
In terms of sales there is one more on the road, which will contribute to the quarterly reports for the company causing the share price to rise.
If the dealer has had it on the forecourt for several months they actually want to get rid of it now and they will be bring the price down towards, or even below, what they paid for it. You may even end up paying more than they were going to sell it for.
If you like the car and you tell others they will most likely buy it at full cost or a least with a profit still on it.
Servicing the car will most likely depend on the manufacturer's own part on which they make a profit.
In terms of sales there is one more on the road, which will contribute to the quarterly reports for the company causing the share price to rise.
If the dealer has had it on the forecourt for several months they actually want to get rid of it now and they will be bring the price down towards, or even below, what they paid for it. You may even end up paying more than they were going to sell it for.