Is there a list of simplified Chinese radicals? The radical 159 车 consists of 7 strokes, in fact it is its traditional version 車 which includes 7 strokes ...
You should refer to Table II of Final Table of Simplified Characters (简化字总表) for 14 simplified radicals. Although the table itself has been replaced since 2013, it is the only official reference for simplified Chinese radicals.
Here is a list of Chinese radicals, including both simplified and traditional versions. https://en.wiktionary.org/wiki/Index:Chinese_radical