To estimate the price of the 2018 Nissan Altima SV 2.5L i4 with 56300 miles, I first considered the selling prices of similar cars. A 2018 Altima SV with 57000 miles sold for AED 29000 on 2023-08-28. A 2019 Altima SL with 41212 miles sold for AED 55000 on 2023-09-19, but this is a higher trim and in better condition. A 2016 Altima SE with 55700 miles sold for AED 21000 on 2023-10-29, but this is an older model and a lower trim. The accepted offer for a similar 2018 Altima SV with the same mileage was AED 25000 on 2024-03-26. Listed prices include AED 27000 for a similar car with the same mileage, AED 29000 for a similar car with 57000 miles, and AED 22000 for a similar car with 94000 miles. Considering these data points, the most relevant are the selling price of AED 29000 and the accepted offer of AED 25000. Given the car's average condition and mileage, I estimate the market price to be slightly below the selling price but above the accepted offer.