The next bit of Forza Motorsport 4 car DLC is on the way, and the folks at Turn 10 and Microsoft Studios are teaming up with us here at IGN to bring you a new crop of awesome rides. The December IGN Pack includes 10 brand new cars, including turbo-charged new rides like the 2011 Monster Sport Suzuki SX4 and the classic 1957 Maserati 300 S.

The December IGN Pack is launching for 560 MS Points ($7 USD) on December 6, 2011. If you've purchased a Forza Motorsport 4 Season Pass, however, the pack will be available at no additional cost. A Season Pass can be picked up through the Xbox LIVE Marketplace or participating retailers, including Best Buy and GameStop, for 2400 Microsoft Points ($29.99 USD), and gives you access to all six planned game add-on packs for Forza Motorsport 4 at 30 percent savings.

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Check out the full descriptions for the cars included in the December IGN Pack below:What do you get with a 3.1-liter twin-turbocharged V6 with a monstrous 897 horsepower and a rear spoiler the size of your average Manhattan apartment? A new record on the Pikes Peak International Hill Climb, that's what. The 2011 Monster Sport Suzuku SX4, driven by Tobuhiro "Monster" Tajima, claimed the first sub-ten minute climb at 2011's running of the annual hill climb in Colorado. To put some context to the record: that's nearly 12.5 miles, 156 turns, and an average seven percent grade over gravel and paved surfaces alike. All in under ten minutes, or 9:51.278 to be precise, a time that bested the previous record (also set by Tajima) by more than ten seconds. You'll be able to experience the raw fury of the Monster Sport Suzuki SX4 yourself in Forza 4. Might we suggest a run on the biggest hill of all in Forza 4--Fujimi Kaido--as your first baptism by fire? After all, the SX4 knows its hills…Though the 2011 Mazda RX-8 will be the last production model of the RX-8 series, it appears to be going out with a bang. The 1.3 liter engine is capable of 232 horsepower, a top speed north of 130 mph, and a 0-60 time of around seven seconds. The six-speed manual transmission and light weight make for a responsive ride and there's no denying the pleasing whines of that rotary engine. It might be going away, soon to be replaced by Mazda's next sports coupe, but you'll be able to enjoy the RX-8's swan song in Forza 4 for years to come.Here's a tip, Forza 4 fans: Once you purchase a 2011 Ford F-150 SVT Raptor in Forza Motorsport 4, get yourself to the "Aero and Appearance" upgrade menus as quick as you can, because there are some gems to be found. From extra headlamps up front and on the roof to an open bed in the back complete with a pair of thick-treaded tires, the visual options for the already menacing-looking Raptor are a treat for fans of pickups and sweet-looking rides alike. The Raptor will please driving fans too; it's a three-ton monster with more than 400 horsepower and an engine that sounds like it woke up on the wrong side of the garage. In fact, with all that growling power and the unique FORD logo embedded in the grill, it's precisely the last car your opponent will want to see up close and personal in his rear view mirror.The '67 Chevelle SS-396 introduced a number of improvements to the then-three-year old Chevelle model line including improved tires, better steering response and optional front disc brakes. While the three-speed automatic was standard, the Chevelle you'll drive in Forza features the four-speed option, 375 horsepower, V8, which was a dealer-installed conversion fitted into just a few hundred of the SS-396 models at the time. That rip-roaring power pushing a chunky hunk of Detroit steel weighing more than 3,500 pounds makes the '67 Chevelle a classic piece of American muscle car heritage and a car that's just as fun to listen to as it is to slide around a track.With a storied history in rallying and a body style that's ripe for race replica paints (or whatever style you like, really), the 1977 Ford Escort RS1800 should prove as desirable in Forza 4 as it is by Ford enthusiasts and collectors in real life. Begun in 1975, the RS1800 used the legendary Cosworth 1.8L BDA engine, which churns out 115 horsepower, and powered its way to multiple rally wins and a couple of World Championships.Like other Volkswagen models of its era, the Scirocco dervies its name from the wind; in this case, the Mediterranean Sirocco wind, which originates in the Sahara and can reach hurricane speeds in southern Europe. While the stock 1.7 liter 74-horsepower engine that powers the '81 Scirocco S might not register on the Beaufort scale (the car tops out at a modest 111 mph), the Scirocco S proved to be a worthy replacement for its sports coupe predecessor the Karmann Ghia. The distinctive red VW badge and belt-line moulding set the Scirocco S from its standard model counterpart, along with a five-speed transmission, a front spoiler, and light alloy wheels. Visually and performance wise, it's easy to see why VW customers at the time considered the Scirocco S a breath of fresh air.With classic sports car lines and a zippy 2.0L engine pushing out 115 horsepower, the 1986 Alfa Romeo Spider Quadrifoglio Verde is a treat for the eyes and a smooth ride in the driver's chair. The '86 package featured new skideskirts and mirrors, front and rear spoilers and an optional removable hardtop. Quadrifoglio Verde translates literally to "Green Fourleaf Clover" and, while it's undetermined whether the car is lucky, there's little doubt that if you get a chance to drive one in real life, you're lucky indeed. Get a dose of good fortune with the Quadrifoglio Verde in Forza 4, a reasonably priced, great-looking ride that just begs for attention, whether you're behind the camera lens or behind the wheel.Though fuel efficiency was one of the catalysts that kicked off GM's Fiero brand, by the middle of its lifespan, customers were demanding more performance from the line. In 1988, the Fiera featured significant upgrades, including a new suspension designed to better support the Fiero's mid-engine layout. Little wonder then that with more power and a more focused design, the '88 version is largely considered the best in the Fiero line. As it happens, it was also the last Fiero produced, despite a prototype for a 1990 version being produced. The Fiero may be gone but it's still fondly remembered; a quick spin in Forza 4 is all the proof you'll need to know why.With its familiar Maserati oval grill and a bold logo emblazoned on the side, the 2010 Maserati GranTurismo MC GT4 makes its presence known straight away. Designed to compete in the GT4 European Cup series, this 433-horsepower machine is bent on circuit race domination, thanks to tight, responsive steering and some serious straightline speed (north of 187 mph, according to the Forza 4 benchmark tool). It's not cheap, of course, but if you're looking for a combination of eye-catching looks, hair-raising performance, and brand cache, the MC GT4 fits the bill.For some, the Maserati 300S is what 1950s motorsports is all about. As the main challenger to the Ferraris of the era in the World Sportscar Championships, the 300S saw the talents of legendary drivers like Juan-Manuel Fangio, Carroll Shelby and Stirling Moss employed behind the wheel. The four-speed manual gear box and 3.0L, 260 horsepower engine is capable of a top speed of 175 mph and a 0-60 time of around 4.2 seconds. The 300 S is expensive but, with classic looks and great performance, you probably won't mind.To clarify any confusion, IGN is not paying to offer this pack, nor are we receiving any revenue from its sales. What we will be doing, however, is offering a ton of codes for free to Prime subscribers when the DLC pack is released next week, hence the branding. So stay tuned!