I've checked several places to try to find one, but it seems no company makes them... at least not yet.

 

I will be shocked if anyone will at this point.

The custom resin kit may be your best option.

I think they made a lot of PT cruser models and diecast that did not sell as they expected.

It took 23 years for them to do a Fiero 18th.

 

I hope it won't take them that long to make a HHR SS.

 

Agree with Hyperv6, it's not leading the charts as the most popular vehicle nor a highly popular nostalgia vehicle therefore probably a poor market for it.

That said I was at a Car Show (Classic Car Auction) today and saw a model for a 1955 Olds 88, now how popular was that car?

 

Patience my dear, patience! See here:

https://www.chevyhhr.net/forums/general-hhr-4/1-25-scale-resin-hhr-kit-19219/

 

For those looking for a diecast, and have not seen......
http://www.ebay.com/itm/Chevy-HHR-Sport-Utility-Wagon-1-64-Scale-Limited-Edition-3-Detailed-Photos-Below-/150963846223?pt=Diecast_Vehicles&hash=item2326257c4f

 

That appears to be a Johnny Lightning. I have two of those. Don't let the pictures fool you. They are small; Hot Wheels/Matchbox size. I Paid about 3 dollars each for them a few years ago. Had no idea they'd gone up in value to that extent.