One of the best ways for automakers to conceal upcoming products during testing on public roads is to use so-called development or test mules that hide a new or modified chassis and drivetrain components under a fake body shell, typically sourced from a model currently in production.
This is the case with a new Renault prototype captured by our spy photographers this week in Northern Europe undergoing cold weather testing.
The modified body shell is borrowed from the facelifted Renault Fluence, but it's evident from the photos that the car is sitting on a longer wheelbase and wider platform. It also rides on a taller suspension.
At this point, however, we are not aware if the French brand is working on a new SUV / Crossover or a sedan / station wagon model, but the upcoming Geneva Motor Show in March of 2014 may provide some answers to what's concealed under the sheetmetal.
Photo Credits: CarPix for CarScoopS