Prado more Executive better road grip more spacious better resale Feels good inside cabin you can get dual ac in tz version and more comfortable drive,,if u have budget go for Prado, Surf has no comparison with Prado that is in Hilux category.
1kd is a good engine power+economy 9,10 km/l but maintenance is difficult as you have no idea what kind of diesel you are getting when out of station second choice is 5vz fe it has power but have to compromise on economy as it gives 6,7 km/l and in last 2.7 liter engine which is under powerd and if SUV is underpower then it is better to buy a car
Now choice is yours