Sadly, those new springs don't deliver a marked improvement in handling. The S5 still corners like the nose-heavy car it is, unless you opt for Audi's nifty torque-vectoring rear differential. We highly recommend spending the extra $1100 to do so, as it helps neutralize the S5's behavior during hard cornering and renders the car a delightful, balanced performer.
By All Means, Have It Your Way
MTM's certainly delivered a more powerful S5, but aside from improved braking and stylish wheels, it's hard to point out exactly where the tuner improved upon Audi's original product. MTM's S5 is certainly a well-rounded machine, but perhaps only slightly quicker and sharper than it was originally. Further, it's hard to swallow the added cost; springing for every MTM option adds close to $20,000 to the price tag -- and that's not including the cost of installation.
Luckily, MTM's accessories are available not only as a package, but also a la carte. An S5 Cabriolet with the Sport Drive controller and rear differential is an enticing package in stock form, but we'd certainly opt for the extra stopping power offered from MTM's front brake kit. Choose your options wisely, and you can build your dream cabriolet that is still priced within reason.
2010 MTM Audi S5 Cabriolet
Base price: $58,450 (stock)
Price as tested: $94,196 (estimated)
Factory options: Premium package ($5900), Drive Select package w/ Sport Differential ($3950), Comfort package ($1400)
MTM accessories: M-Cantronic ($3896) exhaust ($3377), 20-inch Bi-Moto wheels ($9700), Eight-piston front brake kit ($5762), Lowering springs ($886)
Engine: supercharged 3.0-liter V-6
Power: 430 hp; 379 lb-ft
Transmission: seven-speed dual clutch