GeigerCars extracts more muscle from the ATS-V Coupe, but other tuners are getting even more out of the 3.6-liter biturbo V6.

German tuner GeigerCars specializes in upgrading American vehicles mainly for a European audience, and the company’s latest project aims to make the Cadillac ATS-V Coupe into something even more potent. The firm’s Black Line styling kit gives the Caddy meaner looks that better fit the extra power, too.

GeigerCars’ 7,900-euro ($8,860) performance kit pushes the ATS-V Coupe’s 3.6-liter biturbo V6 to 502 horsepower (374 kilowatts), which is a 38-hp (28 kW) gain over the stock 464 hp (346 kW). Torque jumps to 486 pound-feet (659 Newton-meters) versus 445 lb-ft (603 Nm) from the factory. An eight-speed automatic still sends the muscle to the rear wheels. The tuner doesn’t specify how these upgrades affect the Caddy’s acceleration, but the top speed jumps to 194 miles per hour (312 kilometers per hour) from 189 mph (304 kph) out of the showroom.

The kit’s parts include a stainless steel cat-back exhaust with controllable valves for managing the sound, an X-pipe, and 110-millimeter (4.3-inch) tailpipes. The company also retunes the engine’s software for optimization of the fueling, ignition, and turbo boost.

Cadillac ATS-V by GeigerCars
Cadillac ATS-V by GeigerCars

GeigerCars also has components available that give even more attitude to the already aggressive ATS-V. The firm’s 1,090-euro ($1,220) lowering springs slice 25 mm (one inch) off the ride height, and they give the coupe a road-scraping appearance ­– as these photos show. The 19-inch OZ Leggera wheels for 3,990 euros ($4,480) fit well with the squatter look, too. The company’s 750-euro ($841) Black Line pack completes the menacing transformation by adding darker trim to the outside.

While the German company’s upgrades look great, other tuners are finding ways to get even more power out of the ATS-V. For example, Hennessey Performance in the United States offers a kit that allegedly takes the Caddy to 550 horsepower, which is 48 hp (36 kW) more than GeigerCars and 86 hp above the amount that comes from the factory. Hennessey’s improved parts include new engine software, a cat-back exhaust, and an updated induction system.

Source: GeigerCars

Gallery: Cadillac ATS-V Coupe by GeigerCars

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Cadillac ATS-V Coupe Twin Turbo Black Line by


If you want a powerful American sports car in Germany, you normally go for the usual suspects: muscle cars like the Ford Mustang and Chevrolet Camaro, or the more hard-core Dodge Viper and Chevrolet Corvette.


Cadillac, whose reputation was built around luxury sedans, would normally not figure in this shortlist. But Cadillac has had the sporty V-models in their range for some years now, and uprated to 508 hp by GeigerCars, their ATS-V Coupé suddenly becomes an interesting and exclusive alternative to the Mustang and Camaro.


• Output of the twin-turbo V6 increased to 508 hp / 374 kW

• Base car for 74,900 euro

• 19-inch OZ Leggera wheels with tyres for 3,990 euro

• Black Line package for 750 euro


Increasing the output of the twin-turbo V6 engine by 39 hp, GeigerCars takes it over the magic 500-hp threshold, with peak torque boosted from 603 to 659 Nm. The resulting 312km/h top speed puts the Cadillac Coupé in junior league supercar territory.


The enhanced performance package (7,900 euro incl. VAT) consists of a combination of hardware and software upgrades. A stainless-steel cat-back, valve control sports exhaust system with X-pipe and 110 mm diameter tailpipes reduces backpressure while delivering a more mellifluous soundtrack. Optimising the fuelling, ignition and turbo boost to suit, the ECU remap does the rest.


The Cadillac ATS-V comes well equipped out of the box with a long list of dynamic aids such as Magnetic Ride Control suspension, Brembo brakes, an electronic limited slip differential, and launch control.


Dropping the ride height by 25 mm to benefit looks and handling is the job of the bespoke GeigerCars sports springs (1,090 euro). In combination with the 9.0 and 9.5x19-inch OZ Leggera alloy wheels shod with 255/30ZR19 and 275/30ZR19 tyres, (3,990 euro with fitting), the car takes on a lower and wider stance.


The enhanced sportiness of the GeigerCars Cadillac ATS-V has been carefully balanced with brand's luxury mission. Thus, the standard Cadillac amenities like the Recaro sports leather seats, dual-zone automatic climate control, and a Bose sound system are there to pamper occupants. The GeigerCars Cadillac ATS-V is available for an all-inclusive price of 88,630 euro.










Cadillac ATS-V Coupe Twin Turbo Black Line by


Engine: Twin-turbo V6

Displacement: 3.6 litres

Power: 508 hp / 374 kW at 6,100rpm

Torque: 603 Nm at 4,600 rpm

Transmission: 8-speed automatic transmission

Consumption city / highway / combined: 16.9 L / 8.2 L / 11.4 L/100 km,

CO2 emissions, combined: 260 g/km

Emission class: Euro 6

Efficiency class: G



GeigerCars Components


Stainless steel cat back sports exhaust system with sound valve control,

X-pipe, 110mm tailpipe diameter.


Software Remap


9.0 and 9.5x19 inch OZ Leggera alloy wheels, 255/30ZR19 and 275/30ZR19 tyres


25 mm lower sport springs




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