He said that the car lacked rigidity and its chassis was flexing, despite its carbon fibre and kevlar monocoque, and that the chassis couldn't handle the abrupt power delivery of the turbocharged Honda engine which made the car difficult to drive, a common complaint of Piquet and Nakajima, as well as the team's test driver Martin Donnelly. He also noted how cramped the driving position was and that the steering wheel and instrument panel were so close together that it made the panel almost unreadable.
The vehicle lacked stability due to its chassis flexing, despite being constructed with carbon fibre and kevlar. The turbocharged Honda engine's sudden power surge made handling challenging, a sentiment shared by Piquet, Nakajima, and test driver Martin Donnelly. Furthermore, the confined driving position and proximity of the steering wheel and instrument panel rendered the latter nearly illegible.