It succeeds in providing significant speed enhancements and breakthroughs while keeping In-Vehicle computers to costs down. MOST150 enables the use of a higher bandwidth of 150 Mbps, an isochronous transport mechanism to support extensive video applications, and an embedded Ethernet channel for efficient transport of IP-based packet data.
To clear things up, it succeeds in providing significant speed enhancements and breakthroughs while keeping costs down. The new Intelligent Network Interface Controller (INIC) architecture complies with Specification Rev. 3.0 and expands the audio/video capability for next generation automotive infotainment devices such as Head Units, Rear Seat Entertainment, Amplifiers, TV-Tuners and Video Displays.
refer to: http://embedded-computing.com/news/most150-series-adoption/