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VW solid-state battery retains 95% capacity over 1,000 charge cycles in lab testing
(www.techspot.com)
This is a most excellent place for technology news and articles.
If you're speaking on the 1.4l turbo, that was introduced in 2012. Have one in my car and it's a great little engine. Lots of extra room in the engine bay left over though.
i think it was an earlier NA one. my brother's 2006 Polo has it.
extra room is good, a couple more turbos can't hurt.
It's aluminum block though. Only so much that little guy can take. I honestly have never looked into many performance upgrades for it outside a new air intake because that giant fuck-off box that's under my hood needs to go.