John McIlroy , for CNN Tokyo, Japan Written by

John McIlroy is the Digital Editor of Autocar

One of the biggest attractions at this year's Tokyo Motor Show , is also one of the smallest.

The Toyota S-FR is a baby coupe with a front-engined layout and rear-wheel drive. The vehicle is slightly longer than its obvious rival, the Mazda MX-5 Miata , but it keeps its roof in place and features four seats instead of two.

The concept was styled by Toyota's in-house team in Japan, with the aim of creating a car that could sit in the model lineup beside the brand's existing sports car, the GT86

The resulting creation has clear references to Toyota's heritage -- most notably the little Sports 800 that made its own debut at the Tokyo show back in 1962 and was sold almost exclusively in Japan.

There's not a straight edge or sharp crease on the S-FR's body, the design of which was influenced by a well-worn pebble, and looks it.

It's a stark contrast with the complex surfaces visible on Toyota's other two big reveals at Tokyo -- the latest Prius hybrid and the C-HR small crossover

Indeed the S-FR's front-end design is cuter than it is sporty, with a gaping, large mesh grille and small headlights that give it the look of a bemused toddler instead of an aggressive racer.

Inside, the car looks ready for showrooms, with a mixture of fabric, rubber and bare body-colored metal in the cabin.

Recognizable parts from the Toyota family include the indicator stalks, a tiny but effective instrument panel, and a digital rev-counter that spins around the speed display.

Toyota has not released any technical information but it's been widely speculated that the S-FR has a four-cylinder 1.5-liter petrol engine producing around 130bhp.

This would put it squarely into the territory of the MX-5, although the car's project leader, Koichi Matsumoto, says it's designed for a slightly broader audience than the Mazda's purist fan base.

It could also be aimed at less affluent buyers, with a starting price of $18,000.

It's hard to find someone at Toyota who'll say that the S-FR is destined for production. Equally however, there have been hints that the firm will await reaction to the car at Tokyo before making a decision.

Matsumoto has been quick to point out that Toyota could build the car without pairing up with another manufacturer. That differs from two of its other confirmed sports car projects: the GT86, already on sale after being jointly developed with Subaru, and a forthcoming car that's the result of a collaboration with BMW.

Toyota President Akio Toyodo has revitalized the Japanese giant by focusing on cars that are inspiring and fun to drive. It would seem that on the face of it, a baby coupe that's unmistakably, unapologetically Japanese could be another useful step in that process.