4 Doors in DTM & New Format

[racer69]

With 4 door cars allowed in next years DTM, and a 150km format with optional pitstops, do you think this will encourage more manufacturers to enter, or as it is still german based, will it just continue to be the domain of german manufacturers, sa other makes would look more favourably at the ETC.

Also, are the DTM cars sportscars or Touring Cars, i know they call themselves touring cars, but they are (well, were) eligible for the inetractive sportscar championship.