Question: When did the luxury division of the biggest automobile company in the world change the body style of rx 350?

Knowledge 1: Automotive industry
Rank Group Country Vehicles Toyota Japan 10,213,486 Volkswagen Group Germany 10,126,281 Hyundai South Korea 7,889,538 General Motors United States 7,793,066 5 Ford United States 6,429,485 6 Nissan Japan 5,556,241 7 Honda Japan 4,999,266 8 Fiat Chrysler Automobiles Italy / United States 4,681,457 9 Renault France 3,373,278 10 PSA France 3,152,787 11 Suzuki Japan 2,945,295 12 SAIC China 2,566,793 13 Daimler Germany 2,526,450 14 BMW Germany 2,359,756 15 Changan China 1,715,871 [SEP] Knowledge 2: 1973 oil crisis
Some buyers lamented the small size of the first Japanese compacts, and both Toyota and Nissan (then known as Datsun) introduced larger cars such as the Toyota Corona Mark II, the Toyota Cressida, the Mazda 616 and Datsun 810, which added passenger space and amenities such as air conditioning, power steering, AM-FM radios, and even power windows and central locking without increasing the price of the vehicle. A decade after the 1973 oil crisis, Honda, Toyota and Nissan, affected by the 1981 voluntary export restraints, opened US assembly plants and established their luxury divisions (Acura, Lexus and Infiniti, respectively) to distinguish themselves from their mass-market brands. [SEP] Knowledge 3: Lexus RX
A facelift was designed through late 2010 and patented on 7 January 2011 under design registration number 001845801 - 0004. The facelift was unveiled at the March 2012 Geneva Motor Show with new wheels, interior colors, new head and tail lamps and new grilles. New LED running lights were introduced as well. The F Sport was introduced, with a honeycomb grille, 8 - speed automatic transmission, and a unique sporty interior. In the US, the new model uses the Lexus Enform telematics system, which includes the Safety Connect SOS system and Shazam tagging. Sales began worldwide in April 2012 for the RX 350 and RX 450h, with sales for the F - Sport variants starting in July of the same year.
Knowledge 1: Automotive industry
Rank Group Country Vehicles Toyota Japan 10,213,486 Volkswagen Group Germany 10,126,281 Hyundai South Korea 7,889,538 General Motors United States 7,793,066 5 Ford United States 6,429,485 6 Nissan Japan 5,556,241 7 Honda Japan 4,999,266 8 Fiat Chrysler Automobiles Italy / United States 4,681,457 9 Renault France 3,373,278 10 PSA France 3,152,787 11 Suzuki Japan 2,945,295 12 SAIC China 2,566,793 13 Daimler Germany 2,526,450 14 BMW Germany 2,359,756 15 Changan China 1,715,871 [SEP] Knowledge 2: 1973 oil crisis
Some buyers lamented the small size of the first Japanese compacts, and both Toyota and Nissan (then known as Datsun) introduced larger cars such as the Toyota Corona Mark II, the Toyota Cressida, the Mazda 616 and Datsun 810, which added passenger space and amenities such as air conditioning, power steering, AM-FM radios, and even power windows and central locking without increasing the price of the vehicle. A decade after the 1973 oil crisis, Honda, Toyota and Nissan, affected by the 1981 voluntary export restraints, opened US assembly plants and established their luxury divisions (Acura, Lexus and Infiniti, respectively) to distinguish themselves from their mass-market brands. [SEP] Knowledge 3: Acura MDX
The Acura MDX, or Honda MDX as known in Japan and Australia (only the first generation was imported), is a mid-size three-row luxury crossover, produced by the Japanese automaker Honda under its Acura luxury nameplate since 2000. The alphanumeric moniker stands for "Multi-Dimensional luxury". According to Honda, the MDX is the best-selling three-row luxury crossover of all time, with cumulative U.S. sales expected to surpass 700,000 units before the end of 2014. It has ranked as the second-best selling luxury crossover after the Lexus RX, which offers only two rows of seats.
Knowledge 1: Automotive industry
Rank Group Country Vehicles Toyota Japan 10,213,486 Volkswagen Group Germany 10,126,281 Hyundai South Korea 7,889,538 General Motors United States 7,793,066 5 Ford United States 6,429,485 6 Nissan Japan 5,556,241 7 Honda Japan 4,999,266 8 Fiat Chrysler Automobiles Italy / United States 4,681,457 9 Renault France 3,373,278 10 PSA France 3,152,787 11 Suzuki Japan 2,945,295 12 SAIC China 2,566,793 13 Daimler Germany 2,526,450 14 BMW Germany 2,359,756 15 Changan China 1,715,871 [SEP] Knowledge 2: 1973 oil crisis
Some buyers lamented the small size of the first Japanese compacts, and both Toyota and Nissan (then known as Datsun) introduced larger cars such as the Toyota Corona Mark II, the Toyota Cressida, the Mazda 616 and Datsun 810, which added passenger space and amenities such as air conditioning, power steering, AM-FM radios, and even power windows and central locking without increasing the price of the vehicle. A decade after the 1973 oil crisis, Honda, Toyota and Nissan, affected by the 1981 voluntary export restraints, opened US assembly plants and established their luxury divisions (Acura, Lexus and Infiniti, respectively) to distinguish themselves from their mass-market brands. [SEP] Knowledge 3: Hyundai Universe
The Hyundai Universe (hangul:현대 유니버스) is a heavy-duty luxury coach built by Hyundai Motor Company. It is primarily available as luxury hi-classic tourist buses.

Answer: Sales began worldwide in April 2012