for some reason when i accelarate in my spider relatively hard, the hand brake light flickers on, i imagine this is nothing but maybe loose wire or something, has anyone every had this happen on any car, obviously the hand brake is off when i'm moving.
Handbrake warning light is also the 'low brake fluid' light. I would be checking your fluid level pretty soon if I were you.
The reason why it flickers under acceleration is the same as the reason why your petrol guage changes on hills, the sensor is being uncovered as the fluid moves towards the back of the reservoir. This means it's probably not very low, but the question is, why has it become low? Might have a leak.