Tesla: 1st Model 3 to be built Friday, sales start July 28

The first Tesla Model 3 electric car for the masses should come off the assembly line on Friday with the first deliveries late July, the company's CEO says.

CEO Elon Musk, in several Twitter messages early Monday, says the new car passed all government regulatory requirements for production to begin two weeks ahead of schedule. The company plans to hold a party to hand over the first 30 Model 3s to customers on July 28, Musk wrote in a tweet.

The Model 3 is to start around $35,000 US and with a $7,500 US federal electric car tax credit, could cost $27,500 US. Tesla says the five-seat car will be able to go 215 miles (346 kilometres) on a single charge and will be sporty, accelerating from zero to 60 miles per hour (100 km/h) in under six seconds.

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Musk tweeted that the company expects to produce 100 cars in August and more than 1,500 in September. "Looks like we can reach 20,000 Model 3 cars per month in December," he wrote.

Musk's tweets appear to erase doubts that Tesla would be able to meet deadlines for mass producing the cars, which is key to the company making money. Previously it has faced delays in getting vehicles to market. The Palo Alto, Calif.-based company aims to make 10,000 Model 3s per week in 2018.

Tesla hasn't said how many people have put down $1,000 US refundable deposits for the Model 3, but Musk has said people who put down a deposit now won't get a car until the end of 2018, suggesting it could be close to 500,000.

Tesla's last new vehicle, the Model X SUV, was delayed nearly 18 months. Musk says the Model 3 is much simpler to make, but 14-year-old Tesla has no experience producing and selling vehicles in high volumes. Tesla made just 84,000 cars last year. Bigger rivals like General Motors, Volkswagen and Toyota routinely sell around 10 million vehicles per year.

Even if the Model 3 is on time, servicing all those vehicles will still be a challenge. Model S and Model X owners are already worried about having to share Tesla's company-owned charging stations with an influx of new cars. And while Tesla is promising to increase its network of stores and service centres by 30 per cent this year, it began 2017 with just 250 service centres worldwide. That leaves many potential owners miles from a service centre.

Musk has said a new fleet of mobile service trucks will be deployed to help customers who are far from service centres. Tesla also plans to double its global high-speed charging points to 10,000 by the end of this year and increase them by another 50 per cent-100 per cent in 2018.

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Until recently, Tesla owned the market for fully-electric vehicles that can go 200 miles (322kilometres) or more on a charge. But that's changing. GM beat Tesla to the mass market with the Chevrolet Bolt, a $36,000 US car that goes 238 miles (383kilometres) per charge. Audi plans to introduce an electric SUV with 300 miles (483kilometres) of range next year; Ford will have one by 2020. Volkswagen plans more than 30 electric vehicle models by 2025.

Automotive competitors like Mercedes and Volvo not to mention tech companies like Google and Uber can also match Tesla's efforts to develop self-driving vehicles. And they have deeper pockets. Tesla has had only two profitable quarters in its seven years as a public company.