Trim levels were originally Pony, LX, and GT. The GT was the North American equivalent of the Laser XR3i version, featuring a 1.8 L Mazda DOHC engine. The LX and standard or Pony were equipped with the 1.9 L overhead cam eight-valve CVH inline four. The Pony or later standard was the base trim level, lacking most features like power steering or a radio. The LX was the upscale trim level, and a sport package could be added to make it look like a GT. Subtle differences can be noticed in all three Escort models (sedan, hatchback and wagon) from 1990 to 1996. In 1992, the grill oval hall around the "Ford" emblem became a little larger in order to allow more air to enter under the hood to cool the engine. In 1993, the wheel size was changed from 13 inches to 14 inches. A driver's airbag was introduced in 1994 as well, and by 1995, both driver and passenger airbags were standard with the redesigned dash for the 1995 model year.