How much cargo space does the 2022 Subaru Forester have? See why the Forester lost ground with other small SUVs in a new study. How does the 2022 Subaru Forester cargo space compare with other small SUVs? Cars.com measured twenty-eight small SUV's cargo space behind the rear seat. And Cars.com measurements are much lower than the manufacturers' numbers because they only measure to the top of the rear seatback and not the roof's top.