The 2006 40 Tiara twin sister to the Tiara 4300 Sovran with Volvo Penta’s Inboard Performance System challenges every assumption about what a boat can be by changing the whole future of onboard performance while elevating enjoyment of the boating experience. On the 4300 Sovran, dramatically reduced noise and vibration allow conversations in comfort while underway. Because Volvo Penta?s IPS releases up to 25% fewer emissions, owners enjoy diesel power performance, economy and durability without exhaust smoke, noise or vibration. In fact, Volvo Penta?s IPS in the Tiara 4300 Sovran delivers 25% better fuel efficiency resulting in fewer trips to the fuel