Similarities with an Italdesign concept car which debuted in 1990 , the Jaguar Kensington , led some observers to suggest that the GS 300 was derived from its design .
The firm has stated that the GS 300 was developed earlier .
Similarities with an Italdesign concept car which debuted in 1990 , the Jaguar Kensington , led some observers to suggest that the GS 300 was derived from its design , but the firm has stated that the GS 300 was developed earlier .