Question: The AR engine family is a straight-4 piston engine series by Toyota, first introduced in 2008 for the RAV4, and subsequently for the Toyota Venza is a front-engine, front- or all wheel-drive mid-size five-passenger crossover SUV manufactured and marketed by Toyota in North America, and unveiled at the 2008 of which event in Detroit?

Context articles: Toyota RZ engine
Toyota AR engine
Toyota ZZ engine
Toyota UZ engine
Toyota E engine
Toyota MZ engine
Toyota Venza
Toyota SZ engine
Toyota AZ engine
Toyota NZ engine

The Toyota RZ engine family is a straight-4 piston engine series built in Japan.
 The RZ series uses a cast-iron engine block and aluminum SOHC or DOHC cylinder heads.
 It has EFI fuel injection, 2 or 4 valves per cylinder and features forged steel connecting rods.
The AR engine family is a straight-4 piston engine series by Toyota, first introduced in 2008 for the RAV4, and subsequently for the Highlander, Venza, Camry and Scion tC.
The Toyota ZZ engine family is a straight-4 piston engine series.
 The ZZ series uses a die-cast aluminum engine block with thin press-fit cast iron cylinder liners, and aluminum DOHC 4-valve cylinder heads, a first for Toyota.
 The camshafts are chain-driven.
 The two 1.8 L members of the family, the 1ZZ and 2ZZ, use different bore and stroke.
 The former was optimized for economy and torque, while the latter is a "square" design optimized for high-RPM power.
 The ZZ family replaced the extremely popular cast-iron block "4A" engines.
The Toyota UZ engine family is a Gasoline fueled 32-valve quad-camshaft V8 piston engine series used in Toyota's luxury offerings and sport utility vehicles.
 Three basic versions have been produced, the 1UZ-FE, 2UZ-FE, and 3UZ-FE.
 Production spanned 24 years, from 1989 to mid 2013, ending with the final production of the 3UZ-FE-powered Toyota Crown Majesta I-FOUR.
 Toyota's UZ engine family was replaced by the UR engine family.
The Toyota E engine family is a straight-4 piston engine series, and uses timing belt rather than a chain.
 The E engines were the first multi-valve engines from Toyota designed with economy, practicality and everyday use in mind (rather than performance).
 Like many other Toyota engines from the era, the E engine series features a cast iron block, along with an aluminum cylinder head.
 E engines are lighter compared to earlier Toyota engines, due the hollow crankshaft, thinned casting of the cylinder block, and several other reductions in auxiliaries as well as in the engine itself.
 Carbureted versions include a newly designed, variable-venturi carburetor.
 All of these changes improved economy and emissions.
 The members of the E engine family, range from 1.0 L to 1.5 L.
 The E family supplanted the "K" engines in most applications.
 A large number of parts in the E engine series are interchangeable between each other.
The Toyota MZ engine family is a V6 piston engine series.
 The MZ series has an aluminium engine block and aluminium alloy DOHC cylinder heads.
 The cylinders are lined with cast iron, and is of a closed deck design (no open space between the bores).
 The engine is a 60 degree V6 design.
 It uses multiport fuel injection (MFI), four valves per cylinder, a one-piece cast camshaft and a cast aluminium intake manifold.
 The MZ family is a lightweight V6 engine of an all-aluminium design, using lighter weight parts than the heavier duty VZ block engines in an effort to lower production costs, decrease engine weight, and decrease reciprocating weight without sacrificing reliability.
 Toyota sought to enhance the drivability pattern of the engine (over the 3VZ) at exactly 3000 rpm, since that was the typical engine speed for motors cruising on the highway.
 The result was less cylinder distortion coupled with the decreased weight of rotating assemblies, smoother operation at that engine speed, and increased engine efficiency.
The Toyota Venza is a front-engine, front- or all wheel-drive mid-size five-passenger crossover SUV manufactured and marketed by Toyota in North America and unveiled at the 2008 North American International Auto Show in Detroit.
The Toyota SZ engine family is a straight-4 piston engine series with its exhaust facing forward.
 This engine was jointly developed by Daihatsu.
The Toyota AZ engine family is a straight-4 piston engine series.
 The AZ series uses an aluminium engine block with cast iron cylinder liners and aluminium DOHC cylinder heads.
 The engine series features many advanced technologies including slant-squish combustion chambers,
The Toyota NZ engine family is a straight-4 piston engine series.
 The 1NZ series uses aluminum engine blocks and DOHC cylinder heads.
 It also uses sequential fuel injection, and has 4 valves per cylinder with VVT-i.