u/Easy-Connection2926

I recently stumbled across a Seal 7 PHEV and was very impressed by the pricing, features and design. However, I have a few questions that the sales representative answered very vaguely to.

1. I do not own and I am not planning to install a charger, but I intend to drive it purely with fuel. Does this affect range or performance at all?
2. I had friends with other Chinese manufactured cars and they described service and maintenance costs a "real trap". If someone can give me rough estimate of how much service costs per 10k km (or per month/year) it would be greatly helpful.
3. In addition to the maintenance stuff, how long does a battery realistically last and how much would i have to pay for a new one if its not under warranty?
4. Lastly, i am not a very cautious driver and I'm worried the amount of these sensors everywhere around the car. Are parts overly expensive or hard to find?

Thank you to anyone who helps, it will be greatly appreciated.