Audi’s latest performance drop-top is said have a torsional rigidity that’s 40% stiffer than its predecessor. Among the measures brought to the structure to offset the lack of a fixed roof structure are reinforced sills and additional strengthening within the bulkheads.
Safety is also enhanced by the inclusion of rollover beams that deploy from behind the cabin in the event of the car rolling over, as well as head-thorax side airbags within the door linings.
The new S5 Cabriolet gets the same turbocharged 3.0-litre V6 engine as the S5 Sportback with 349bhp and 369lb ft of torque on offer. Peak power is 21bhp up on the old car and its supercharged 3.0-litre V6. With an eight-speed torque converter automatic with Tiptronic shift controls and the latest evolution of Audi’s Torsen torque-sensing quattro four-wheel drive system fitted as standard, the 2017 car’s claimed 0-62mph time is 5.1sec – three tenths down on its Sportback sibling. Both versions of the S5 have a limited top speed of 155mph.
Inside, the S5 gets the same dashboard and many of the same interior appointments featured on the latest A5. Buyers can specify an optional 12.3in high-definition Virtual Cockpit digital instrument display as well as a head-up display unit.