To estimate the price of the 2018 BMW 420 Mkit I4 2.0L Twin Turbo in bad condition with 170000 km mileage, I considered several data points. First, I looked at the selling prices of similar cars: a 2016 BMW 420 Sport 2.0L I4 sedan with 85500 km sold for 64000 AED, a 2017 BMW 420 I4 2.0L convertible with 67266 km sold for 82000 AED, a 2016 BMW 420 I4 2.0L Twin Turbo sedan with 285860 km sold for 26000 AED, and a 2016 BMW 420 Sport 2.0L TC I4 convertible with 86500 km sold for 77000 AED. The closest match in terms of variant and engine is the 2016 BMW 420 I4 2.0L Twin Turbo sedan, which sold for 26000 AED but had much higher mileage. Next, I considered the accepted offer for a 2018 BMW 420 I4 2.0L M-KIT with 124000 km at 65000 AED. For listed prices, a 2018 BMW 420 2.0L I4 Standard sedan with 123000 km was listed for 79000 AED, and a 2017 BMW 420 I4 Mkit 2.0L Twin Turbo convertible with 159000 km was listed for 60000 AED. Given the bad condition and higher mileage of the target car, I adjusted the price downwards from these reference points.