The Xpeng G9 SUV. Xpeng Chinese startup Xpeng revealed its latest model: the sleek G9 SUV. It's the first that Xpeng has developed specifically to sell internationally. Chinese electric-vehicle startup Xpeng already competes with Tesla on its home turf, which happens to be one of Tesla 's most important markets. Now Xpeng is looking to conquer Europe, and it just revealed the new SUV that's leading the charge. The startup's newest model, the sleek G9 SUV unveiled Thursday, is the first it designed specifically to sell both in China and abroad. Xpeng started selling its P7 sedan in Norway earlier…