Big flat spot at low RPM?

[pundit]

Hi all! I let my Father in law drive my E34 today. He was complaining about a big "flat spot" on take off. To be honest the car has always been like that, ie, I have to "wind it up" a bit to get it to move, I thought it was just a bit of latency. I thought this was normal but he says it's not. Any ideas on what could cause this? It's an M20B20 engine.

Thanks,

Shaun

As others have mentioned, for a 2 litre motor in a car the weight of an E34?...you're right.... it's normal!