What is Emmie saving her money to buy?

Emmie is saving her money to buy a high-speed, multi-link-suspension stunt wheelchair. This selection highlights her ambition and desire to engage in stunts, possibly for thrill-seeking or aligning with a particular interest in sports or activities that utilize such specialized equipment. The high-speed capability of the wheelchair emphasizes her passion for speed and performance, suggesting that she values not just the functionality of the chair but also its potential for thrilling experiences.

The other options do not align with the focus on extreme sports or stunts, suggesting different interests. A specialized computer for school, a new bicycle for racing, and a book series on sports cater to various academic or leisure pursuits, but they lack the unique appeal of a stunt wheelchair that embodies a specific lifestyle or activity that may resonate more strongly with Emmie’s character in the narrative.