While most of the major automakers are actively involved in developing HCCI engines, one prominent manufacturer is taking a wait and see attitude. Axel Rücker manager for Energy Integration Systems at BMW
thinks that diesels
still offer more potential for greater efficiency and lower emissions than HCCI. While General Motors
has allowed us to drive HCCI prototypes and Mercedes-Benz
showed a concept called the F700 at the recent Frankfurt Motor Show
, BMW has not done any HCCI development yet. Ford
are also both actively involved in working on HCCI as are many researchers at places like MIT and Purdue.