even though later in the generation every trim level would get a spoiler that all but masked the hump. From the NASCAR circuit came the aerodynamic styling and ducktail spoiler. The 6th generation Monte Carlo is based on the Monte Carlo "Intimidator" concept car, produced in 1997. Trim levels initially consisted of the LS, and SS, the latter being the first front-wheel drive SS in the Chevrolet lineup. The LS used a 3.4 L OHV V6, while the SS got the 3.8 L V6. A Supercharged SS model was added for 2004 and 2005; the naturally aspirated SS continued as well, but was relabeled as LT for MY 2005. 2006–2007 The facelifted 2006 Monte Carlo and the companion Impala sedan were introduced at the 2005 Los Angeles Auto Show. The base engine was a 3.5 L V6 producing 211 hp (156 kW). Trim series for this generation include the entry-level LS, the mid-level LT, the upper-level LTZ and, the top-of-the-line SS. Only 14,829 SS models were produced over the two years, 8,794 in 2006 and 6,035 in 2007. The most notable news, though, was the SS model's use of the generation IV small-block V8 — the first V8 since the 1988 model. The 5.3 L V8 produced 303 hp (226 kW). The interior for 2006 was mildly redesigned. The revised model also added an improved interior with expanded Driver Information Center (DIC), enhanced ABS and traction control, as well as optional, seat-mounted side airbags for the front driver and passenger. The LT and LTZ models were available with the 3.9 L engine in 2006. For 2007 the LTZ model was dropped along with the engine in favor of the Flex Fuel 3.5 L as the exclusive engine for non-SS models. Specialty nameplates Chevrolet released several models inspired by then-current NASCAR drivers: The first model released was the 2002 Dale Earnhardt Signature Edition, also referred to as Intimidator Edition. This car had two color schemes; a black body with galaxy silver rocker panels and front and rear air dams, and an all-black body with black ground effects. A thin red stripe above the silver ground effects was also included. Just behind the rear side windows, the Dale Number 3 logo was placed with Earnhardt's signature below the Number 3 logo. The car also featured silver "Intimidator" SS badges on the right side of the trunk and standard Monte Carlo SS badges