Rivian is a company that makes electric cars, which are cars that use electricity instead of gasoline to run. They have three models now and they want to make another one called R2. This new car will be smaller and cheaper than their other ones, and it will compete with a similar car made by Tesla. However, Rivian is having some problems because not many people are buying their cars right now and they are losing money. They also have to deal with issues like finding enough workers and getting the parts they need to make the cars. Because of this, it might take longer for them to start making the R2 car. Some people think that Rivian's stock price will go up when the new car is announced today, but others are worried about how long it will take them to succeed in the electric car market. Read from source...

1. The article title is misleading and sensationalized. It implies that the R2 unveiling will have an immediate impact on Rivian's stock price, which is not guaranteed or supported by evidence. A more accurate title could be "Rivian To Unveil R2 Today: A New EV Option For The Midsize SUV Market".