Can a p plater drive 250 ci six cylinder car?

It depends on the specific laws and regulations in your area. In general, P platers are allowed to drive cars with up to a certain engine capacity. For example, in New South Wales, Australia, P platers are allowed to drive cars with an engine capacity of up to 200kW, or a power-to-weight ratio of up to 130kW per tonne.

As a 250 ci six-cylinder car typically has a power-to-weight ratio of more than the prescribed 130kW, P-platers are generally not permitted to drive such vehicles in New South Wales and several other Australian states and territories.

However, it is important to check the specific regulations in your area, as they may differ.