A new Stingray variant.

[raketenjagdpanzer]

Not photoshopped: a Stingray turret mounted on an M-41 Walker Bulldog chassis.

http://i.imgur.com/2l4O1Ax.png

[StainlessSteelCynic]

I have a vague recollection that Cadillac Gage tried the turret on a number of hulls as proof of concept or something and this prompted me to look for something that I remember from way back.
The Stingray turret mounted on the M551 Sheridan hull was apparently submitted for the US Army's AGS trials. The only image I know of is this one found on http://www.jedsite.info/

http://www.jedsite.info/tanks-sierra/sierra/sheridan_series/agsheridan/agssheridan_001.jpg

There's next to no info listed but here's the specific page: -
http://www.jedsite.info/tanks-sierra/sierra/sheridan_series/agsheridan/agsheridan.html
However I believe Paul has both hull variations listed on his site under one of the Best vehicles that never were sections.

And if you want more "What if" vehicles, trawl through the main page for the Sheridan (including mounting the 76mm turret from the M41 onto the M551 hull)
http://www.jedsite.info/tanks-sierra/sierra/sheridan_series/sheridan-series.html

[pmulcahy11b]

Is that a Stingray or Stingray II turret?

[raketenjagdpanzer]

Is that a Stingray or Stingray II turret?

Ask the guys at Tanknet (I pinched the photo from over there).