For gearheads who want to get noticed, there are few better options out there than the Mercedes-Benz G-Class. The G-Class made its proper debut for the 2002 model year, though only in G 500 flavor initially. 2002 Mercedes-Benz G 500 Values Fair $24,600 Good $37,900 Excellent $53,100 Concours $74,300 Average Auction Sale Price $34,589The 2002 G 500 has suffered from depreciation somewhat, according to Hagerty's Valuation Tool. Aside from these factors, the G 500 was also very rare. Exclusivity is one of the main attributes that leads to a vehicle increasing in value, and the 2002 G 500 has this in spades.