Original sentence: These included the Buick 252 V6, diesel Oldsmobile 350 V8, and of Cadillac's own "HT-4100" small block V8, an alloy unit with cast iron cylinder liners which was troublesome and prone to early failure
Edited sentence: These included the Buick 252 V6, diesel Oldsmobile 350 V8, and of course Cadillac itself, with its infamous "HT-4100" small block V8, an alloy unit with cast iron cylinder liners which was troublesome and prone to early failure