Tesla built validation prototypes of the Roadster and raised a fourth round of $45 million, taking private funding above $105 million. In August the board asked co-founder Martin Eberhard to step down as CEO; Michael Marks served as interim CEO before Ze'ev Drori took over in December, when Tesla also said the first Roadsters would ship with their transmission locked in second gear.
Tesla baute Validierungsprototypen des Roadsters und sammelte in einer vierten Runde 45 Mio. US-Dollar ein, womit die private Finanzierung über 105 Mio. stieg. Im August bat der Verwaltungsrat Mitgründer Martin Eberhard, als CEO zurückzutreten; Michael Marks übernahm übergangsweise, im Dezember folgte Ze'ev Drori. Zugleich kündigte Tesla an, die ersten Roadster mit im zweiten Gang fixiertem Getriebe auszuliefern.
Tesla construyó prototipos de validación del Roadster y captó una cuarta ronda de 45 millones de dólares, con lo que la financiación privada superó los 105 millones. En agosto el consejo pidió al cofundador Martin Eberhard que dejara el cargo de consejero delegado; Michael Marks fue CEO interino hasta que Ze'ev Drori asumió en diciembre, cuando Tesla anunció además que los primeros Roadster saldrían con la transmisión bloqueada en segunda marcha.
Tesla a construit des prototypes de validation du Roadster et levé un quatrième tour de 45 millions de dollars, portant le financement privé au-delà de 105 millions. En août, le conseil a demandé au cofondateur Martin Eberhard de quitter la direction générale ; Michael Marks a assuré l'intérim avant que Ze'ev Drori ne prenne la tête en décembre, date à laquelle Tesla a aussi annoncé que les premiers Roadster seraient livrés avec la transmission bloquée en deuxième.
特斯拉制造了 Roadster 验证原型车，并完成 4,500 万美元的第四轮融资，私募融资总额超过 1.05 亿美元。8 月，董事会要求联合创始人 Martin Eberhard 辞去 CEO 职务；Michael Marks 担任临时 CEO，12 月由 Ze'ev Drori 接任。同月特斯拉宣布，首批 Roadster 交付时变速箱将锁定在二挡。
In December 2007, Tesla announced plans to ship the initial Roadsters with the transmissions locked into second gear, providing 0 to 60 mph (0 to 97 km/h) acceleration in 5.7 seconds and allowing customers to swap out transmissions under warranty when the finalized transmission, power electronics module (PEM), and cooling system became available.
At the "Town Hall Meeting" with owners in December 2007, Tesla announced plans to ship the initial 2008 Roadsters with their interim Magna two-speed direct shift manual transmissions locked into second gear, limiting the performance of the car to less than what was originally stated (0 to 60 mph (0 to 97 km/h) in 5.7 seconds instead of the announced 4.0 seconds).
In March 2007, Tesla reported the Roadster's efficiency on the EPA highway cycle as "135 mpg [U.S.] equivalent, per the conversion rate used by the EPA" or 133 Wh/km (21.5 kWh/100 mi) battery-to-wheel and 155 Wh/km (24.9 kWh/100 mi) plug-to-wheel.
In January 2007, the American automaker Tesla Motors opened a facility in Rochester Hills, Michigan, employing sixty people to work on new projects, including a four-door sedan.