Range Rover V8 Tdi hse

When we went to collect the Range Rover V8 Tdi hse from main dealers ready for the 09 reg we could not drive it home as the brakes kept locking on was told it was only a 2 minute job 2 days later they delivered the car to us now every time we stop the engine we have a burning smell and smoke coming from the front on opening the bonnet. the inside engine compartment was filthy as it looks like vehicle had been parked outside for a year or more on checking the front tyres they look worn even though the car is new also night driving when head lamps are on every one coming is flashing lights as ours have not been set right

For a new vehicle which costs over £50k we think it is very poor.