Europe's main stock markets rose at the start of trading on Wednesday following robust gains for Tokyo.
Germany's main index managed to edge higher despite a fresh slide for Volkswagen's share price.
London's benchmark FTSE 100 index climbed 0.28 percent compared with Tuesday's close to open at 6,401.77 points.
In the eurozone, the Paris CAC 40 index gained 0.30 percent to 4,951.19 points and Frankfurt's DAX 30 edged up 0.05 percent to 10,957.06.
Volkswagen shares shed 10.7 percent to 99.12 euros in initial trades.
It comes after the German car giant on Tuesday said an internal probe had found that 800,000 more vehicles showed "inconsistencies" on carbon emissions amid a massive pollution cheating scandal.
In Asia, Tokyo's benchmark Nikkei 225 index closed up 1.3 percent on Wednesday as Japan Post shares skyrocketed in their long-awaited market debut.
Shares in the vast company -- along with its banking and insurance units -- were listed on the Tokyo Stock Exchange following an $11.5 billion share sale, in the largest offering globally since Chinese e-commerce giant Alibaba's record $25-billion initial public offering last year.
Wall Street rose for a second straight session Tuesday, led by oil majors and retailers.