From the sound of Jerry's post announcing the Street Scrapper 4, I don't think they will ever be made again.

"This is not going to be a regular offering in INFI as it takes quite a while for these guys to scrounge up this much scrap INFI. . . My guess is that this is a one-time run and will probably NEVER be repeated!!!"

It's possible that there are still some Street Scrapper 4's in transit or being completed but I wouldn't bet on it.

You might see these offered in a Busse extravaganza but I am sure the quantity would be small.

I just hope that 5 is a lifetime supply.