Interestingly to found this news from Thestar Online, the full article as below,
Published: Tuesday December 11, 2012 MYT 12:40:00 PM
KUALA LUMPUR: Proton Holdings Bhd has acquired all engine technologies and knowledge developed by Petronas since 1997 through its technology commercialisation arm, Petronas Technology Ventures Sdn Bhd, for RM63mil.
Proton Chairman Datuk Seri Khamil Jamil said the national car maker will have immediate ownership of a more powerful yet fuel efficient family of naturally aspirated and turbocharged 2.0L engines, as well as a 2.2L turbocharged version to complement its existing Campro engine line-up.
"Proton and Petronas initiated the engine technology exploration in 1996.So, it is time now to take over from Petronas, since the company decided in 2010, to exit completely from all engine development activities.
"Proton Holdings, through Perusahaan Otomobil Nasional Sdn Bhd, is taking over seven engine technologies with 117 technology patents from Petronas," he told reporters after the Assets and Technologies Acquisition Agreement signing, here today.
The exchange of documents was witnessed by the advisor to Petronas and Proton, Tun Dr Mahathir Mohamad. - Bernama
Actually the news on Petronas design engine can be trace way back to the year 2005, which you may found some info in Paultan blog as in this link http://paultan.org/2005/07/08/the-petronas-e01/
For this Petronas E01e engine specification is shown below,