Premium brand from Chinese giant BYD is heading to Europe with this intriguing Porsche Panamera rivalChinese giant BYD doesn’t really do modesty, but then its remarkable growth (founded just 22 years ago, it’s now the world's sixth largest vehicle manufacturer) has earned it the right to carry a bit of swagger.Even so, when BYD executive vice-president Stella Li describes Europe-bound premium sub Denza’s products as “10 times better than the competition&rd