To estimate the price of the 2015 GMC Terrain V6 3.6L SLE2, I first considered the selling prices of similar cars. The closest match is the 2014 GMC Terrain V6 3.5L SLE (FWD) with a selling price of 34000 SAR, but it was in good condition and sold in 2023. The 2013 models with the same engine size and average condition sold for around 27500 to 30000 SAR in 2024. The 2015 model listed for 28000 SAR has not been delisted, indicating it might be slightly overpriced. Considering the 2015 model's better condition and lower mileage compared to the 2013 models, but also accounting for the market depreciation since the 2014 sale, I estimate the market price to be slightly lower than the 2014 model's selling price.