The Grumman 17 or 5.0 was a wide body, a very wide boat for its size given that era or even now. Made in the mid to late 80's I believe, center console, side console, I don't know if they ever did the walk through. Then came the 16, which was conventional and led to a later 18. Then OMC bought them up and slid the Sea Nymph into both the Lowe and Grumman lines, for the 17 and 19 footers.