starting in October 1975. To meet new emissions regulations the 1.6-litre 12R engine was replaced by the more modern 2T-J in commercial models. The 18R-E engine with fuel injection that was used in the 2000SL and 2000SR discontinued production due to emission issues. In November 1975, the 1800 saw the removal of the twin carburetors due to emission regulations, which meant the discontinuation of the 1800SR coupé. June 1976 saw the installation of a catalyst system included with the TTC-C system. January 1977 saw a minor appearance change to both the interior and exterior, with a revised grille and hood, as well as new headlight surrounds. The taillights were also modified; while still rectangular, they were less busy in appearance. New Zealand assembly began with 1.6 OHV, three-speed manual column shift and bench front seat and 1.8-litre 16R OHC four-speed manual bucket front seat options. Later, the 18R 2.0-litre OHC engine replaced the 1.8 and was also offered with a three-speed automatic, the first auto Corona in New Zealand. Australian models had the 18R from the start, as did South African ones. Sixth generation (T130; 1978) Introduced in Japan in September 1978, the T130 series Corona adopted a boxier design over the outgoing T100/110/120 series. It maintained the standard front-engine / rear-wheel-drive layout of all Coronas that preceded it. The T130 series was available in a wide range of body styles across various markets including a four-door sedan, two-door hardtop coupe, four-door wagon and new five-door liftback, which featured a 40:60 split fold rear seat. The assignment of "T130" to all Corona body styles signified a new approach from having different series number identifiers for the various body styles. This was also the first Corona to be sold as a "Toyota" rather than a "Toyopet" in the Japanese domestic market. All models featured MacPherson strut independent front suspension as well as a four-link trailing arm rear suspension arrangement with a Panhard rod, except for the wagon, which used leaf springs, like the Corolla and Cressida wagons. Disc brakes were fitted as standard equipment on the front of all models. Rear disc brakes were fitted as standard on the 2000GT and 2000SL, which were not available to all international markets. Other models were fitted with rear drum brakes. The Corona range received a thorough facelift in August 1980, with new rearwards sloping rectangular headlights which gave it a more modern appearance