General Motors has announced second quarter net income up 89% year on year to US$2.5bn, or $1.54 per share, the restructured, post-bankruptcy automaker's sixth consecutive profitable quarter. Revenue increased $6.2bn to $39.4bn and adjusted earnings before interest and tax (EBIT) were $3bn compared with $2bn in Q2 2010. There were no special items in either period. GM Europe returned to positive adjusted EBIT, too.