English company shows V10 hybrid sports car

There are two valves per cylinder, a single overhead camshaft per bank with bucket tappets and variable valve timing system, and a very high (13.5 to one) compression ratio. Cross-linking of opposite inlet ports produces pressure pulses to improve low-speed torque, and each cylinder has its own throttle valve.

The engine alone reaches its torque peak at 4000rpm, but with the electric motor assisting its efforts there's a flat torque curve of 144lb ft from 1000rpm right up to 6000rpm. That strong low-end pull is the secret of the Connaught's pace, delivering a pulling ability extraordinary for such a compact engine unit. Maximum combined power – 162bhp – arrives at 6000rpm.

Added electricity

The Lynch electric motor is attached to the crankshaft nose, via a variable gearing system designed to exploit the fact that an electric motor delivers its highest torque at its lowest speeds.

The drive system ensures that the motor always runs at the best speed for the conditions. It's powered by, and recharges, a 48-volt electrical supply, which keeps current levels low and makes for quicker recharging.

There's also a capacitive and fast charging storage system to respond instantly to big current demands, for example to help with sudden acceleration.

When the Type-D is stationary, the petrol engine does not run. The air-conditioning can still operate if needed, though, thanks to that 48-volt electrical system. To move off, you press the clutch pedal down, select a gear, press the accelerator and the engine fires up as you engage the clutch and move away.

There's none of the usual chatter and jerk of a conventional starter, because the electric motor performs the job of starting the engine.

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