This is the fifth book of the Astrid Maxxim: Girl Inventor series.
Astrid Maxxim, brilliant teenage inventor returns. Astrid is looking forward to racing against a professional driving team to prove her electric racecar can take on the gas-guzzlers. Then without warning, she wakes up in the hospital with partial amnesia. What could have happened to her? Now everyone treats her like she’s brain-damaged! What if her IQ really did drop to 184? What a nightmare!