Renderings looks weird

Hello.
I am new to this program, and I made few renders, but the results looks weird for me. for my example, there’s no shadow under the car, and it looks like there’s a weak light but of course that’s not the case. I am using lumen option and I tried many options but didn’t really worked. I can’t use Path Tracing since I have 1080 Ti, which doesn’t support it

Any suggestion to fix this?

Hi, have you tried using lights like omnidirectional or anything from it then place it above your object, then enabling the shadow?

Set the quality to ultra and restart Twinmotion