Lately, I've noticed a slight thunk coming from near the rear hatch when I step on the gas from a stop. I checked the spare tire compartment to see if anything was loose or not secured, but I still can't find the source. Anyone else with this problem?

Bat™

 

Only when my mother-in-law rides with us!

 

yes i have that problem but only on bumpy roads. my hatch does not close completely tight so there is some free paly. doesnt help that ive got a nismo wing on it