Volvo Penta Aquamatic Duoprop vs Outboard 4-stroke 2021-12-132023-02-04 Karel Overlaet, Medianaut Performance test comparing two Rupert R8s equipped with Volvo Penta V6 280hp vs Outboard 4-stroke 300hp. The test was executed on the Swedish west coast outside of Gothenburg on August 14th 2018. Others Also Read...Why an Electric Outboard Is Not the Better Choice NowTornado Yachts - Daniele Parisi presents the new T-Rib 48Do the New Regulations Hack Towing Your RIB?Mercury Unleashes New V10 400R High-Performance Outboard