Rep Power: 0

Bought this car recently. Was told it had been sitting for 6 months. After I bought it I got some work done and its almost ready to drive but now i jus noticed civic did 79km and took nearly 1/2 tank. See pics for proof.
Maybe a fuel leak?? but mechanic didn't metion anything about fuel leak. Neither did Honda Dealership. Also there is some clunking noise that comes from front and rear of the car while im driving. Not sure what that might be but thought I'd mention it anyway.
The work I recently got done:
- replaced front sway bar links
- changed all 4 wheel disc brakes (pads n rotors)
- replaced Battery
- replaced rear shocks
- fixed O2 sensor (check engine light is now out)
Civics got 160k on the OD (thats in km not miles). Its a 2006 Honda Civic 2Dr Coupe LX 1.8L
I've attached pics for proof of the kms and fuel. Any help would be highly appreciated!