Money or car question?
If you keep it in the garage and crank it twice a week for 10-15 years, wash & wax it regularly then it MIGHT be worth what you paid for it not counting the time value of money.
In the real world, its a terrible idea. Expensive cars depreciate. Even if they are limited edition models.
Invest in the stock market. It, over time, tends to go up.
Cars, except in very rate instances continue to go DOWN, DOWN and down.
That said, older cars worth $1000-2000 don't tend to go down in value much as long as they stay in the same condition.
Cars are not investments. (Except for rare really expensive collector items and even then, its highly questionable if they go up in value)