 
<translate> Ka ba da wani rafi na sani sannan kuma amsar. Sunan HHR shine rubutun farko na Heritage High Roof.  Bisa ga wannan nassi, menene hhr yake wakilta a kan Chevy? <eng> Give some stream of consciousness and then the answer. The name HHR is an initialism for Heritage High Roof.

Based on this passage, what does hhr stand for on a chevy? 