Nikkei slides 6.5 pct, as Toyota, Isuzu hammered

* Nikkei slides 6.5 pct, biggest one-day loss in 2 weeks

* Toyota dives on earnings fear, Isuzu plunges on downgrade

* Global economy fears grow, fed by dismal U.S. data

* Bargain-hunting at lows likely to prevent sharp falls (Adds stocks, details)

By Elaine Lies

TOKYO, Nov 6 (Reuters) - Japan's Nikkei average slid 6.5 percent on Thursday to its biggest one-day loss in nearly two weeks, with exporters hit by a stronger yen amid fears for the global economy, which brought a quick end to Obama euphoria. Automakers tumbled, with Toyota Motor Co (7203.T) diving 10.4 percent on worries about sliding earnings due to the global financial crisis, while while rival Isuzu Motors Ltd (7202.T) plunged 20.7 percent after it cut its outlook and a brokerage downgrade. Underscoring the worries of the firms central to Japan's export-centred economy, Honda Motor Co (7267.T) Chief Executive Takeo Fukui said Japanese authorities should intervene in the currency market to prevent wild fluctuations in the yen. [ID:nT2909]

The benchmark Nikkei .N225 fell 622.10 points to 8,899.14 in light trade for its biggest one-day loss since Oct 24. The broader Topix slid 6 percent to 909.30, with investors quickly forgetting the bounce seen a day earlier from the election of Barack Obama as U.S. president.

"With the election over, the eyes of investors are turning to the economy, with a sense that nothing quick can be done to stop the global economic slide," said Hideyuki Ishiguro, a supervisor at the investment strategy department of Okasan Securities.

"Over the preceding six trading days, the Nikkei rose nearly 2,000 points, with investors snapping up shares that had been sharply sold regardless of things such as earnings. But now earnings are determining their choices to buy or sell."