Delayed delivery of machines kept the factory unfinished throughout 1896 and into 1897.[23] During 1896 Daimler sold imported cars from companies for which Lawson held the licences.[24] Cannstatt supplied engine parts but the delivery of working drawings were delayed for months.[25] Four experimental cars were built in Coventry and a Panhard van was dismantled and reverse engineered.[26] Some Daimler engines, with details redesigned by works manager J. S. Critchley, were also made in 1896.[27]