Tesla Inc. (TSLA.O) has invited all Model 3 reservation holders in the United States and Canada to confirm their orders. That’s welcome news for customers, many of whom placed $1,000 deposits to reserve the electric sedan in the spring of 2016 and have been fretting about which color to choose ever since.

It’s even more welcome for Tesla’s balance sheet. When a customer confirms their order, they pay another $2,500 before the company begins building their car. If roughly 100,000 people in the US and Canada confirm this week, that’s a $250 million injection of cash in the final, frantic days of a critical quarter.

Tesla does not break down reservations by region, and hasn’t disclosed a reservation number recently. The raw number of reservations is constantly in flux as some people cancel and others reserve for the first time, raising questions about demand and what the true backlog is.

Invitations to order the Model 3 are going out in waves, based on when customers placed their reservation. Currently, customers can choose between Model 3 Long Range Rear-Wheel Drive, Model 3 Long Range Dual Motor All-Wheel Drive, and Model 3 Performance. Models with the cheaper, standard battery—which starts at $35,000—aren’t yet available to order. Customers who want the standard range battery can decide to order a higher priced version of the car, continue to wait, or cancel their fully-refundable reservation.With just a few days left in the quarter, Tesla is racing to hit a production target of 5,000 Model 3s a week at its sole auto plant in Fremont, California. The company hastily erected a massive tent to house a third general assembly line for the Model 3 this month. Tesla is expected to release production and delivery figures on Tuesday.