AUTOSHOW-FACTBOX-Quirky concepts, cars at the Tokyo Motor Show

TOKYO, Oct 10 (Reuters) - Japanese automakers are counting on the Tokyo Motor Show to drum up dwindling interest in cars in their home car market, the world's third biggest. The biennial show, which opens to the public from Oct. 27 to Nov. 11, will showcase 37 world premiere models for passenger cars, five for commercial vehicles and 26 for motorcycles.

Following are some of the cars that will be on display on the stands:

TOYOTA MOTOR CORP (7203.T: Quote, Profile, Research, Stock Buzz)

-- 1/X

Toyota's idea of what a "sustainable" car of the future could look like. The flex-fuel, plug-in hybrid car has a 500cc engine and weighs 420kg -- one-third of the Prius, with twice its fuel efficiency.

-- i-REAL

The third iteration of Toyota's one-seater concept, which began with the i-unit in 2005. An evolved wheelchair that allows drivers to lean back and cruise at high speeds on roads or crawl at walking speed upright on the sidewalk. Toyota says the latest version is closer to a real-life prototype -- hence its name -- although it faces traffic-law barriers for use on roads.

-- RiN

A car that promotes healthy driving and the Zen spirit. Seats are designed to make driver and passengers sit upright, and the steering wheel senses the driver's mindset and displays it on the dashboard visually to promote calm. The sliding doors will resist if too much force is applied; a soft, slight stroke of the handle opens the doors with ease.