Today I was at a Slingshot dealer today and the Polaris rep showed up.
We started talking and its mentioned that GM will not be producing the 2.4 anymore so Polaris will have to come up with a new engine.
Polaris showed off a turbo slingshot, so it's believed they will be engineering their own engine with a turbo.
Has anybody else heard anything about this? Probably for 2020 model