however, with the P100 continuing in its Cortina Mk5 based form until 1988. In 1986 the "hi cap" was released with a taller roof and door tops and a more upright windscreen specific to the last of the Cortina-based P100s. Turkey's Otosan also produced a P100 variant, with a separate bed and using the shorter doors from the four-door sedan to achieve parts commonality - Otosan did not build any other two-door models. The Otosan P100 is based on the Ford Taunus TC, which was built in Turkey in sedan form until 1994. The Otosan P100 was produced until 1996. Sierra-based model In late-1987, for the 1988 model year, the P100 was re-bodied with a new Ford Sierra-based cab. Engine choices were originally the Sierra's 2.0 litre "Pinto" carburetted petrol engine, with a 1.8 L turbo-diesel following soon thereafter. The range was now built in Portugal for the European market, to a design set out by Ford UK. It proved a strong seller, particularly on the UK market. The later P100's petrol engine, while a 2.0 L Pinto engine, differed from the units in the passenger Sierra and Granada models in that it was a low compression version of the 205 block Pinto, the Cosworth engine is based on this block. Single choke carburettors were used along with the lower compression to raise torque whilst lowering maximum power, which was now at . Production of the P100 ceased in 1995. Differences between the Cortina and Sierra The P100, while it appeared similar to the models that it was based upon, had several key differences under its skin. While it used the front bodywork of the Cortina, and later Sierra, only the front half of the underbody was used - the rear, from the middle of the front seats backward, used a ladder chassis for which the pickup tray was mounted to, which could accept a payload of 1000 kg. The P100 was longer than the corresponding Cortina and Sierra models, and had a higher ride height due to having a multi leaf spring suspension in the rear and larger five-stud wheels all round. The hub design on the Cortina was a SA specific pattern and actually a Rover PCD, hence Rover SD1 alloys and steel wheels fit. The later Sierra front hubs were from the Granada with adapter plates to allow fitment of the heavier duty Ford Transit wheel. Its