Information and advice needed, TIA

[Richard Betts]

Hi I am after some information and advice please 
After reading some of the owners posts, I would like to say i am a little concerned.
The car i am going to buy is  2020 Diesel 1.5 Turbo Auto Elite. 
I wanted to tow a racing motorcycle with it.
The bike is 185k and the trailer is quite light. 
I was going to get a stage 1 remap. 
I was wondering if anyone had a remap done? 
Also what is an easytronic auto gearbox like? I don't expect it to be like a DSG VW Auto box? 
Sorry for all my questions, but i am new to the car, i did have a brand new Astra about 11 years ago and the gearbox failed the first year, a manual. 
Besides that it was ok besides that for 4 years.  
But this Crossland being just over 3 years old, it won't have a warranty. 
Also could someone give me a rough price for it with 18k miles on it. 
 All advice and help would be greatly appreciated, thank you