Already used on the Turbo and GT2, this two stage cam and valve lift adjustment system gave more top end and mid range power, a sharper throttle response and improved fuel efficiency. As a result, top speed rose to 177mph whilst 0-60 dropped by two-tenths to five seconds dead. Visually, some subtle changes were made in a conscious attempt to differentiate the 911 from Porsche's markedly less expensive Boxster. The most striking was a switch to Turbo-style headlights, but there were other less obvious changes too. A re-profiled front valance directed 15% more air onto the brakes, the deeper rear apron and bigger exhaust outlet pipes further enhancing this mild facelift. New 17-inch wheels had slimmer-spokes than before, a host of underbody aero refinements further improving speed, grip and stability. Cabriolet's manufactured from the 2002 model year onwards came fitted with glass rather than plastic rear windows. Then, just a couple of months after the 3.6 had gone into production, Porsche launched a new pair of production-ready variants during October 2001's Frankfurt Motor Show.

They were the Targa and Carrera 4S, both of which used the latest 3.6-litre 320bhp engines, the latter becoming perhaps the ultimate normally aspirated 911 this side of a GT3. Basically fitted with all the Turbo goodies sans engine, a series of unique cosmetic details made it the sexiest 911 in production. Most obviously it was sold without the fixed rear wing or ugly intercooler intakes that blighted genuine Turbo's, the 4S also getting a subtly re-profiled chin spoiler. Only available in four-wheel drive, it sat 10mm lower than the stock Carrera, the Turbo-esque suspension being uniquely set up with slightly softer springs, thinner anti-roll bars and re-rated dampers.