BMW Goldfish V16

The BMW V16 engine known as the project Goldfish was a SOHC 32-valve V16 6.7 litre prototype engine based on BMW M70 V12 engine. It was developed in late 1980s by BMW engineers as the top performance offering for the E32 7-series.

The Engine

Specs:
6,651 cc V16 engine
Cast aluminium block and cylinder heads
SOHC, 2 valves per cylinder
Bore and stroke: 84 mm × 75 mm (3.3 in × 3.0 in)
Bore spacing: 91 mm (3.6 in)
Compression ratio: 8.8:1 Maximum power: 408 bhp (304 kW) @ 5,200 rpm
Maximum torque: 637 N·m (470 lb·ft) torque @ 3,900 rpm
Redline: 6,000 rpm
Engine management: 2 separate Bosch DME 3.3 for each bank
Dry weight: 310 kg (683 lb)

So sad that BMW never build it.