Infiniti J30

The Infiniti J30, or Nissan Leopard J Ferie (férié is French for "holiday") in Japan, was a rear wheel drive luxury car. The J30 went into production on April 7, 1992 as a 1993 model to replace the M30 (which was a coupe), and was launched in the United States after its competitor, the Lexus GS. The car was designed to slot between the smaller G20 and the larger Q45, as Infiniti's first mid-size sedan to compete directly with the Acura Legend. Also, it was fairly small but featured rounded styling uncharacteristic of the crowded executive car class, that is now reminiscent of a four-door coupé. Chief designer for the J30 was Jerry Hirshberg, president of Nissan Design International (NDI) and exterior designer Doug Wilson in 1988-1989. Design work was frozen in 1989. In a promotional video produced in 1994, it was referred to as a "personal luxury sedan" as attempt to define it as a four-door coupé.It has the round looks of the Nissan Altima/Bluebird U13.

To establish that this was a luxury vehicle, the interior was largely designed with assistance from Poltrona Frau of Italy, whom they had previously worked with on the larger Q45. The interior treatment continued to use the contrasting arrangement from the larger Q45 with a dark color used for the dashboard, and center console, with a lighter shade color used inside for the seats, interior door panels, headliner, carpet, and carpeted floor mats. The driver's side window controls had an unusual placement in that the drivers window switch was both one-touch express down and double-sized, meaning it was the same width as two conventional window switches towards the top, with the front and rear passenger window switches further down, with the window lockout switch installed next to the front passenger switch, instead of the drivers window switch. The front passenger and rear passenger window switches were thumb activated, installed at the top of the interior door pull handle.