Although Oldsmobile, Pontiac, and Buick have borrowed the Northstar architecture for their V8 (and even V6) engines, it was not until the 2004 Pontiac Bonneville that a non-Cadillac used the Northstar name. The Northstar has been produced in , , and versions: 4.6 L The version was available starting in 1993 on the Seville SLS and Eldorado ESC. The Allanté, the Seville STS and the Eldorado ETC had the version of the Northstar. In 1994, the DeVille Concours received the version of this engine. By 1996, the Northstar engine became standard equipment in the front-wheel-drive Cadillac line. The engine was in the Seville SLS 1993–2004, Eldorado ESC 1993–2002, Standard Deville 1996–2005, Devile d'elegance 1997–1999, and Deville DHS 2000–2005. The version was used in the Seville STS 1993–2004, Eldorado ETC 1996–2002, Deville Concours 1997–1999, and Deville DTS 2000–2005. Its final appearance was in the final generation of the DTS series, produced from 2006 to 2011. Non-Cadillac uses: The version of the Northstar was also standard equipment in the top GXP trim level of the Pontiac Bonneville, produced only in 2004 and 2005. It was also the top engine option available in the Buick Lucerne CXS and a NHP (Northstar High Output) version in the Buick Lucerne Super. produced from 2006 through 2011. The Lucerne shared its platform and the Detroit/Hamtramck assembly plant with the final generation of the Cadillac DTS. 4.4 L The versions were all supercharged, exclusive to Cadillac's V-series. The present STS-V engine, since 2006, produces and under the SAE certified rating system. The 2006 - 2008 XLR-V uses the same supercharged Northstar V8 as the STS-V, though output is down somewhat due to design changes made to accommodate the model's more limited underhood space. For the XLR-V, the SAE certified output is and . The supercharger and four intercoolers are built into the intake manifold. The bores were reduced in size to increase block strength, increasing the safety margin under boost. 4.0 L The is the Oldsmobile Aurora variant, never installed in a Cadillac. The Aurora's cylinder heads had lower flow characteristics to match the engine's reduced size. This engine produces . Cadillac use of non-Cadillac V8s Fleetwood (RWD)/Deville (RWD)/Brougham (RWD) The 1976 through 1979 Seville was only available with Oldsmobile engines. (The engine was "marketed" as a Cadillac engine and was exclusive to the Cadillac product line, but was in reality produced by the Oldsmobile division). Buyers