The specific measurement of the Tata Magic's interior floor, particularly for the middle part where passengers are seated and where a rubber mat would be placed, is not explicitly provided in the available sources. However, the overall dimensions of the Tata Magic can give some insight. The vehicle has an overall length of 3,790 mm, a width of 1,500 mm, and a wheelbase of 2,100 mm. For precise measurements of the interior floor, it would be necessary to consult the vehicle's technical manual or contact Tata Motors directly.