Sorry, but I'll have to agree with the posters tfs114 and AKK above.
Investment:
"In finance, the purchase of a financial product or other item of value with an expectation of favorable future returns."
"In general terms, investment means the use of money in the hopes of making more money."
Unfortunately, buying a car, unless it's a Duesenberg or a 1968 Corvette, is not an investment.