Question: The Mitsubishi 6B3 engine is an engine range with only one 3.0-litre V6 currently developed for a second generation mid-size crossover that was sold at Japan dealership chain called what? 

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Mitsubishi 6B3 engine: The Mitsubishi 6B3 engine is a range of all-alloy V6 engines developed by Mitsubishi Motors.  Currently, only one engine has been developed, a 3.0-litre V6 first introduced in the North American version of the second generation Mitsubishi Outlander which debuted in October 2006.

Courage C41: The Courage C41 was a sports prototype racing car built by Courage Compétition in 1994, and used in international sports car races from 1995 until 1999.  Designed by Paolo Catone, it initially used a 5-litre Chevrolet V8 engine, developed by Comptech, and later used the 3-litre twin-turbocharged flat-six engine from a Porsche 935, as well as an Oldsmobile V8.  In 1998, two of the C41s were developed into the Courage C51, which used a 3-litre twin-turbocharged Nissan VRH35Z V8 engine, and was used in that year's 24 Hours of Le Mans.  In 1999, the C41s were mostly converted to the C52 specification (although one retained its Porsche 935 flat six, and was developed into the C50, whilst another was entered as a Chevrolet-entered C41 in two events); this initially used a 3.5-litre twin-turbocharged Nissan VRH35L V8, which was then replaced by a 3.2-litre twin-turbocharged Peugeot A32 V6 engine for 2000.  In 2000, the C41 line was replaced by the new C60.

GMC Acadia: The GMC Acadia is a mid-size crossover SUV (full-size until 2016) from GMC.  The first generation GMC Acadia shared the GM Lambda platform with the Chevrolet Traverse, and Buick Enclave.  The Acadia went on sale in 2006 as a 2007 model in the United States and in Canada.  The Acadia replaces three of the 7- or 8-seater vehicles on the Pontiac-Buick-GMC dealership network, the mid-size GMC Safari van, the GMC Envoy, and the Pontiac Montana SV6 minivan for the domestic market.  As of 2009, the Lambda vehicles have replaced the Buick Rainier, Buick Rendezvous, and the Buick Terraza, and then subsequently the GMC Envoy and the Chevrolet TrailBlazer.  A Denali version of the Acadia debuted in 2010 as a 2011 model.  In 2016, the second generation Acadia was repositioned as a mid-size crossover utility vehicle (as a 2017 model) in order to compete within the growing mid-size CUV market against the likes of the Ford Edge and Dodge Journey.

Mitsubishi Outlander: The Mitsubishi Outlander is a mid-size crossover manufactured by Japanese automaker Mitsubishi.  It was originally known as the Mitsubishi Airtrek when it was introduced in Japan in 2001, and was based on the Mitsubishi ASX concept vehicle exhibited at the 2001 North American International Auto Show.  It was sold at Mitsubishi Japan dealership chain called "Car Plaza".  The ASX (Active Sports Crossover) represented Mitsubishi's approach to the industry wide SUV trend for retaining the all-season and off-road abilities offered by a high ground clearance and four-wheel drive, while still offering car-like levels of emissions, economy and size.

Lexus GX: The Lexus GX (Japanese: レクサス・GX, "Rekusasu GX") is a luxury mid-size sport utility vehicle (SUV) sold in North American and Eurasian markets by Lexus.  The name GX stands for Grand Crossover.  Lexus introduced the first generation, known as the GX 470 in 2002, and subsequently became the third SUV to enter the Lexus lineup.  A five-speed automatic was always standard, as was a full-time four-wheel-drive system with low-range gearing.  The 4.7-liter V8 engine in the GX 470 was the same as used on the larger LX 470.  The firm next introduced the second generation model in 2009, badged GX 460 to reflect the switch to a 4.6-liter V8 engine.  Lexus later released a lower displacement GX 400 in 2012 for the Chinese market, with a 4.0-liter V6 engine.

Oldsmobile Diesel engine: Oldsmobile produced three versions of a diesel engine between 1978 to 1985: a 5.7 litre V8 1978-85, a 4.3 litre V8 in 1979, and a 4.3 litre V6 1982-1985.  The engines powered front and rear-wheel drive vehicles; the 4.3 litre V6 was adapted to both transverse and inline front-wheel drive applications.  Sales peaked in 1981 at approximately 310,000 units, which represented 60% of the total U.S. passenger vehicle diesel market.  However, this success was short-lived due to a decline in gas prices as well as fuel quality issues including large volumes of diesel fuel containing water or foreign particles.

Mitsubishi Magna: The Mitsubishi Magna is a mid-size car that was produced over three generations between 1985 and 2005 by Mitsubishi Motors Australia Limited (MMAL).  Developed as a replacement for the Mitsubishi Sigma, each Magna generation derived from Japanese platforms re-engineered for the Australian market and conditions.  Initially, Magna offered inline-four engines in a mid-size sedan package—a station wagon debuted in 1987.  Over the years, each new series grew in size, and with the second generation of 1991, the range was bolstered by a luxury variant called Mitsubishi Verada and a V6 engine.  The Magna/Verada became the first Australian-made vehicle to be exported worldwide in large numbers, predominantly as the Mitsubishi Diamante.  The third and final iteration Magna/Verada launched in 1996, adding all-wheel-drive (AWD) from 2002, and receiving a substantial styling update in 2003.  They were replaced by the Mitsubishi 380 in 2005.

Hyundai Terracan: The Hyundai Terracan is a mid-size SUV produced by the South Korean manufacturer Hyundai from 2001 to 2007.  It was based on the Hyundai Highland concept and featured a chassis derived from the second generation Mitsubishi Pajero.  It was powered by one of two engines: a 2.9 litre inline-four Hyundai J engine, or a 3.5 litre V6 Hyundai Sigma engine.  The car's name derives from Tarascan, a Mesoamerican empire state was located in west central Mexico.  The Terracan was replaced by the Hyundai Veracruz.

Alfa Romeo V6 engine: Alfa Romeo's in-house V6 engine (also known as the Busso V6) design made its initial debut in 1979 in the Alfa 6.  Introduced in 2.5 L guise, production engines would eventually range from 2.0 L to 3.2 L displacement.  With modifications it is possible to increase engine displacement to 3.8 L .  Initially developed in the early 1970s by Ingegnere Giuseppe Busso, the original SOHC 12-valve design employed short push-rods to operate the exhaust valves in a design similar to that of earlier Lancia Fulvia engines.  In 1993, the first DOHC version of this engine appeared powering the Alfa Romeo 164.  The engine is an aluminium alloy block and head with sodium filled exhaust valves to avoid overheating.  The South African market introduced the 3.0 GTV6, predating the international debut of the factory's own 3.0 L engine in 1987.  This engine was an Autodelta hand made conversion based on Alfa Sei 2.5 carburated engines enlarged to 93x72mm bore/stroke.

Holden Commodore (ZB): The Holden Commodore (ZB) will be the 2018 model General Motors Holden car sold in Australia, following closure of the company's Australian car manufacturing facilities at Elizabeth, South Australia and Fishermans Bend, Victoria in late 2017.  The new model will be an imported modified version of the German Opel Insignia.  The model range for the 2018 Commodore has not yet been announced.  It will be the first Commodore in thirty years to come with a four-cylinder engine standard, and the first Commodore in the forty year production to have no V8 option.  It will come with a range of engines including a four-cylinder petrol, four-cylinder diesel and a six-cylinder petrol engine option.  Front wheel drive and all wheel drive will be made available across the sedan and wagon body styles.  The Holden Commodore Tourer, an off-road version in the same vein as the Holden Adventra, has been announced.  So far, Calais and VXR model options have been revealed, VXR already being used on German-imported Holdens and replacing the SS due to a lack of a V8 option, and Calais being brought from the previous generations of the Commodore, as a more-luxurious model.  The VXR model will be powered by a naturally-aspirated 3.6-litre V6 engine that produces around 230kW of power and 370Nm of torque.

Supporting paragraphs: Mitsubishi 6B3 engine Mitsubishi Outlander
Answer: Car Plaza