Tesla Motors shares rise 40% of first trading day

image captionTesla expects to be loss-making until at least 2012

US electric car maker Tesla Motors has seen its shares rise by more than 40% on their first day of trading.

It was the top gainer on Wall Street's Nasdaq index, despite broad falls in the rest of the market.

Its initial sale of shares raised $226m (£150m) from investors, $40m more than had been predicted.

The company, which recently saw Toyota invest $50m in return for a 2.5% stake, is the first US car company to go public since Ford in 1956.

Toyota hopes that as well as access to Tesla's electric battery expertise, its investment in Tesla will give it the chance to repair its battered reputation after a series of global vehicle recalls.

"The interest in buying Tesla stock increased tremendously after the Toyota announcement," said Greg Dietrick, a broker at Sharespost.

Tesla is also a partner of Daimler, which owns Mercedes and Smart. Last year, Tesla agreed to supply lithium-ion power packs and recharging systems for 1,000 Smart electric cars.

"You've got the company that invented the internal combustion car coming half way around the world to Tesla," Tesla chief executive officer Elon Musk said ahead of the initial public offering of its shares.

"It's like Gutenberg saying: 'Hey, can you make a press for me?'"

'Technology firm'

Tesla, which was only formed in 2003, hopes the deal will help launch it onto the world stage.

Investors have backed the company so far. Tesla's closing share price of $23.89 means it is now valued at $2.22bn.

Mr Musk insisted investors would benefit from the company's technology knowledge.

"We are a Silicon Valley company. Closer to an Apple or Google than to a GM or Ford in the way we operate the company," he said.

But analysts point out that the company's earnings potential is limited until it has developed its next car, the Model S.

Tesla's losses widened to $29.5m in the three months to March from $16m a year ago, and the company expects to continue incurring losses until at least 2012.

And however good the company's technology, Tesla will be up against established carmakers that are also getting ready for the era of electric motoring, industry observers point out.

"They are not Google, they are in manufacturing," said Jeremy Anwyl, chief executive of the industry observer, Edmunds.

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