Sigma Delta Partners and Goldman Sachs Asset Management led a Series D funding round in Yigongli, a smart car wash system developer. Financial terms were not disclosed. As part of the value add from the new investors, the investment and advisory services unit of Goldman Sachs will help YGL “pave the way” for the firm’s plans of expanding globally and attracting international high-end talent. SDP Investment is expected to leverage its real estate capabilities to help select and acquire new locations for YGL’s car wash facilities.