To estimate the price of the 2020 Toyota Hilux I4 2.7L (Diesel) GL Double Cab 2WD (Base+), I considered the listed prices of similar cars. The closest match is a 2020 Toyota Hilux I4 2.7L (Diesel) GL Double Cab 2WD (Base+) with the same mileage listed for SAR 76000. Other similar models include a 2020 Hilux GLX Single Cab 4WD (Mid++) with higher mileage (198000 km) listed for SAR 59000 and another with lower mileage (93000 km) listed for SAR 67000. Additionally, a 2020 Hilux GL 2 Double Cab 4WD (Diesel) (Mid) with higher mileage (237000 km) was listed for SAR 66000. Considering the target car's average condition and mileage, the most relevant data point is the SAR 76000 listing, but I adjusted slightly downwards to account for negotiation and market conditions.