TOYOTA'S new Corolla sedan offers no surprises. It's no longer built locally - arriving from Japan these days - but embraces the same design philosophy as its predecessor. In essence that means it is bland on the outside and mundane on the inside, reflecting Toyota's conservative approach to sedan design. In its favour, though, Corolla is smooth, refined and reasonably well built. It is a thoroughly competent but uninspiring car - a popular choice for people after fuss-free motoring.