Wedbush Securities keeps its Neutral rating for Tesla Motors Inc (NASDAQ:TSLA) with a $110 price target, with the company’s Q2 earnings report due next week, Street Insider reports. The most important thing for investors to look for is gains on margins, mostly from improved operational efficiency, says Wedbush analyst Craig Irwin. Tesla efficiency gains could be offset by low volume Irwin expects to see an EPS of $0.21 on $385 million in revenue, versus the consensus figure of $0.16 on $396 million, with gross margins at 18 percent improving 90 basis points on last quarter. These gains will mostly come from…