2012 Cadillac Srx Premium Collection Sport Utility 4-door 3.6l on 2040-cars

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2020 Cadillac CT4 revealed in non-V form

We got our first look at the 2020 Cadillac CT4 when its V variant made its debut a few months ago. Now the company is officially showing off the regular CT4 luxury sport sedans. They actually don't look all that different from the V, though - especially the CT4 Sport trim. The Luxury and Premium Luxury trims are distinguished by less aggressive ground effects and a grille studded with chrome pieces shaped like the Cadillac logo. The interior is similar, too, complete with an 8-inch touchscreen. Super Cruise will be made available on the CT4 later in 2020, including on the V model. Really, the big news is the powertrain as V6 engines have been dropped entirely from Cadillac's compact sedan. The base CT4 engine available in Sport or Luxury trim cars is a turbocharged 2.0-liter four-cylinder making 237 horsepower and 258 pound-feet of torque. Coupled to either rear- or all-wheel drive, it features cylinder deactivation and an eight-speed automatic transmission. Unlike in the old ATS, a manual transmission is not available. One notable mechanical difference between trims is the Sport trim gets standard Brembo brakes. Moving up from the 2.0-liter engine is the turbocharged 2.7-liter four-cylinder introduced on the CT4-V. Available on the Premium Luxury trims, its output is downgraded to 309 hp and 348 lb-ft of torque from the CT4-V's output of 325 hp and 380 lb-ft. It too has cylinder deactivation and can be had with either rear- or all-wheel drive. The only transmission offered is a 10-speed automatic. The V model also gets Brembo brake upgrades, and with rear-wheel drive includes Cadillac's magnetically controlled adaptive suspension. Cadillac will start taking orders for the CT4 later this year, but pricing has not been announced yet.

How GM's grueling 24-hour test gets the kinks out of its performance cars

One of the biggest challenges automakers face when designing a high-performance car is making sure that it is both fast and reliable. For General Motors, any car that might be taken to the track by its owner - like the Corvette, Camaro Z/28 (shown above) and the Cadillac CTS-V, for example - undergoes a rigorous and strenuous 24-hour test by engineers at the Milford Proving Grounds, as pointed out by Car and Driver.
We've posted on this topic in the past - on a video showing the Camaro ZL1 being brutalized, for instance - but this article gives a more in-depth look at what actually happens behind the scenes... including what that poor ZL1 went through. Though the test isn't for 24 hours straight, the cars are pushed as hard as possible by some of GM's best drivers with only the brakes and tires replaced frequently.
We don't want to ruin the fun for you, but it is an interesting article that tells just some of what GM does to develop its sports cars. Check out the full article over at Car and Driver for the rest of the story.

GM recalls 61k more vehicles in three campaigns

Following a stop-delivery order for its new midsize trucks and a rash of recent recalls, General Motors is issuing three more campaigns covering 60,575 vehicles in North America with 57,182 of them in the US. As of October 1, the automaker has issued a total of 74 recalls (see the ridiculously long chart to the right) this year covering 26,495,070 units in the US.
The largest campaign covers 46,873 examples in the US of the 2008-2009 Pontiac G8 and 2011-2013 Chevrolet Caprice Police Patrol Vehicle imported from Australia. It's possible for the driver's knee to hit the key and make it move from the "Run" to "ACC" position while driving. GM says its Holden division is developing a fixed-blade key that's supposed to fix the problem by only allowing it to rotate toward the "On" position. There has been one crash caused by this fault but no injuries or fatalities.
The second recall is for 10,005 units of the 2004-2007 Cadillac CTS-V and 2006-2007 Cadillac STS-V because "the fuel pump module electrical terminal may overheat." This can cause a flange to melt and allow the pump to leak fuel. GM specifies that the remedy for the CTS-V is replacing the fuel module and fuel tank jumper harness, but it doesn't specify how the STS-V is being repaired.