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0205gmhtp Deep05 Zoom

If you're wondering what kind of guy is responsible for developing the Sigma chassis, it's gearhead Ken Morris. Morris' official title is vehicle performance manager, a moniker which handily hides the fact the he has flogged the Sigma chassis over 400 laps at Germany's Nurburgring. Those who know road racing will appreciate how the CTS has benefited from this type of no-holds-barred development. (photo: Alan Vanderkaay)