Originally Posted by beemerphile
I thought the single was an XL350
I could have sworn there was one year - I was thinking '73 where they dropped the twin, introduced the single, and called it an SL350. A quick google search didn't bear this out though. Apparently the single didn't come out 'til '74 and was called the XL.
Wouldn't be so embarassing if I didn't own one (76)