Swap That You Never Imagined: Mercedes W123 on Pagani 7.3 L V12 Engine October 8, 2015October 8, 2015Asif Hossain When this Mercedes W123 rolled out of the factory it was powered by a 2.8 L M110 inline-six engine but recently this crafty [...]Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Tumblr (Opens in new window)Click to email a link to a friend (Opens in new window)