GM has unveiled their BMW 3 Series competitor, the 2013 Cadillac ATS. The car is based on a new, lightweight, RWD architecture which enables it to weight less than 3,400 lbs (1,542 Kg) and it will go on sale this summer.
Described as a "blend of technologically driven performance, elegance and design" the 2013 Cadillac ATS measures has been "designed with quick, nimble and fun-to-drive dynamics" and it "expands Cadillac’s portfolio into a crucial global segment".
This all-new compact luxury sports sedan features an almost perfect 50/50 weight balance, uses the company’s first 5-link independent rear suspension, has a multi-link double-pivot MacPherson-strut front suspension with direct-acting stabilizer bar, with the driver being able to adjust the settings of the Magentic Ride Control.
The engines available for the 2013 Cadillac ATS include two 4-cylinder units (an all-new 2.0-litre turbo rated at 270 horsepower / 201 kW plus a 2.5-litre unit producing 200 HP / 149 kW) as well as a 3.6-litre V-6 expected to deliver 320 horsepower (238 kW).
During the development phase the new ATS was extensively tested on the Nurburgring, and some of the components that contribute to its performance are also the belt driven electric variable-effort steering gear from ZF and the four-channel ABS backed by the Brembo performance brakes.
Transmission options on the 2013 ATS include both manuals and automatics along with rear-wheel and all-wheel-drive configurations, and in terms of efficiency the 2.0T model is expected to return more than 30 mpg on the highway.
Overview
| Model: | Cadillac ATS Sedan |
| Body style / driveline: | 4-door luxury sport luxury sedan, RWD/AWD |
| Construction: | Unitized welded steel body with direct-mounted front cradle and rubber-isolated, multi-link independent rear suspension |
| EPA vehicle class: | small car |
| Manufacturing location: | Lansing Grand River Assembly, Lansing, Mich. |
Engines
| 2.0L Turbo DI VVT | 2.5L I-4 DI VVT | 3.6L V-6 DI VVT | |
| Displacement (cu in / cc): | 122 / 1998 | 150 / 2457 | 217 / 3564 |
| Bore & stroke (in / mm): | 3.39 x 3.39 / 86 x 86 | 3.46 x 3.97 / 88 x 101 | 3.7 x 3.37 / 94 x 85.6 |
| Block material: | cast aluminum | cast aluminum | cast aluminum |
| Cylinder head material: | cast aluminum | c ast aluminum | cast aluminum |
| Valvetrain: | DOHC, four-valves per cylinder, continuously variable valve timing | DOHC, four valves per cylinder, continuously variable valve timing | DOHC, four valves per cylinder, continuously variable valve timing |
| Fuel delivery: | direct high-pressure fuel injection | direct high-pressure fuel injection | direct high-pressure fuel injection |
| Compression ratio: | 9.2:1 | 11.4:1 | 11.5:1 |
| Horsepower (hp / kW @ rpm): | 270 / 201 @ 5300 (est) | 200 / 149 @ 6200 (est) | 318 / 237 @ 6800 (est – gas) |
| Torque (lb-ft / Nm @ rpm): | 260 / 353 @ 2400 (est) | 188 / 255 @ 4500 (est) | 267 / 362 @ 4900 (est – gas) |
| Recommended fuel: | premium recommended but not required | regular unleaded | regular unleaded or E85 |
| Maximum engine speed (rpm): | 6350 | 7000 | 7200 |
| Estimated fuel economy: | TBD | TBD | TBD |
Transmission
| Tremec M3L TR3160 | Hydra-Matic 6L45 | |
| Type: | fully synchronized six-speed manual with single overdrive | six-speed, electronically controlled, automatic overdrive with torque converter clutch |
| Gear ratios (:1): | ||
| First: | 4.12 | 4.06 |
| Second: | 2.62 | 2.37 |
| Third: | 1.81 | 1.55 |
| Fourth: | 1.30 | 1.16 |
| Fifth: | 1.00 | 0.85 |
| Sixth: | 0.80 | 0.67 |
| Reverse: | 3.75 | 3.20 |
| Final drive ratio: | 3.27 |
3.27 (2.5L, 3.6L) 3.45 (2.0T) |
Chassis/Suspension
| Configuration: | rear-wheel drive |
| Differential: | open (FE2 suspension); mechanical limited-slip (FE3 suspension) |
| Front: | MacPherson-type with dual lower ball joints and direct-acting stabilizer bar; Magnetic Ride Control (FE3) |
| Rear: | independent five-link with monotube shock absorbers; Magnetic Ride Control (FE3) |
| Steering type: | ZF rack-mounted electric, power-assisted and variable assist |
| Steering ratio: |
FE2: 16.8:1 FE3: 15.3:1 |
| Steering turns, lock-to-lock: |
FE2: 3.16 FE3: 2.86 |
| Turn circle (ft / m): |
FE2 RWD: 36.38 / 11.09 FE3 RWD: 35.99 / 10.97 FE2 AWD: 38.05 / 11.60 |
| Chassis control: | four-channel StabiliTrak w/ brake assist and traction control |
Brakes
| Type: |
four-wheel disc with sliding calipers on base; four-channel ABS/TCS w/ DRP; Brembo brakes with fixed calipers on Luxury, Performance and Premium collections |
| Rotor type and thickness (in / mm): |
Standard front: 11.8 x 1.02 (300 x 26) vented, with Ferritic Nitro Carbunized process for corrosion resistance Standard rear: 12.4 x 0.90 (315 x 23) vented, with Ferritic Nitro Carbunized process for corrosion resistance Uplevel front: 12.6 x 1.18 (321 x 30) vented, with Ferritic Nitro Carbunized process for corrosion resistance Uplevel rear: 12.4 x 0.90 (315 x 23) vented, with Ferritic Nitro Carbunized process for corrosion resistance |
Wheels/Tires
| Wheel size and type: |
17×8-inch aluminum (painted) 17×8-inch aluminum (polished) 18×8-inch aluminum (machined-face) 18×8-inch aluminum (polished) |
| Tire size: |
P225/45R17 90H all-season P225/45R17 90V run-flat all-season 225/40R18 92V run-flat all-season 225/40R18 88W / 255/35R18 90W run-flat summer-only 225/35ZR19 88Y / 255/30ZR19 91Y run-flat all-season (LPO) |
Dimensions
Exterior
| Wheelbase (in / mm): | 109.3 / 2775 |
| Length (in / mm): | 182.8 / 4643 |
| Height (in / mm): | 55.9 / 1421 |
| Width (in / mm): | 71.1 / 1805 |
| Track (in / mm): |
front: 59.5 / 1512 rear: 60.9 / 1548 |
| Curb weight (lb / kg): | less than 3,400 / 1,542 (approx.) |
| Weight distribution (% front / rear): | 51 / 49 |
Interior
| Legroom (in / mm): |
front: 42.5 / 1079 rear: 33.5 / 851 |
| Headroom (in / mm): |
front: 38.6 / 980 rear: 36.8 / 935 |
| Shoulder room (in / mm): |
front: 55.2 / 1345 rear: 53.9 / 1370 |
| Hip room (in / mm): |
front: 53.0 / 1345 rear: 52.3 / 1328 |
Capacities
| Seating capacity (front / rear): | 2 / 3 |
| EPA passenger volume (cu ft / L): | 90.9 / 2573 |
| EPA trunk volume (cu ft / L): | 10.2 / 290 |
| Trailer towing maximum (lb / kg): | 1000 / 454 (3.6L) |
| Fuel tank (gal / L): | 16 / 60.5 |
| Engine oil (qt / L): | TBD |
| Cooling system (qt / L): |
8.1 / 7.7 (2.0T) 7.1 / 6.7 (2.5L) 11 / 10.4 (3.6L) |
