If your car works, you can easily just drive your vehicle to these yards, or if need be, you can even tow it there. If you cannot tow or drive your vehicle to the facility, some yards have a tow service and will even haul it off for you. Depending on the company, they may not charge you for towing, but they will also not pay you for the scrap weight. This is usually determined by the discretion of the owner.
You can negotiate the price, the terms of payment, who pays for which expense, what is included in the purchase, I mean literally everything. Whole books are written about negotiation. For you, these are the most relevant tips to apply.
Now I'm not advocating a cynical view to buying. For the most part private and trade sellers are honest people simply trying to make a profit and not deceive, but it is amazing how often this lack of research happens. If you don't believe me, look at the many stories of hugely valuable treasures being discovered at car boot (garage) sales or in auction. Remember car scrap yard near me that sold in the UK for in excess of 45m, well that was valued earlier by a dealer at 800. Oops. You can't be an expert on everything, so the lesson here, is do your research. You may not get it right every time, but it will pay dividends in the long run.
Like all other products, coins' values also change during a year, which has peak season and off-peak season. Not like other products which are more expensive before Christmas and cheaper at Boxing Day, coins have their own up and downs. However, different category may have different timing. You can search completed items on eBaysee how much the coins had recently sold. Also, you can find some recent sold item prices on Australian and World Coins Database.
Cutting important parts: Most appliances come with many different parts, from metallic to plastic. Some of these parts like copper wires, thermostats etc, can get you a higher price so cut them out and sort them separately.
When scrapping your car you could make some extra money. How much cash you will get will depend on on varying different things. Most bib's cash for junk or scrap: cars & trucks disposal companies pay a rate which is in line with current scrap prices. This figure can be subject to change and they can go up or down. Many companies will look to see if you have added any additional weight to the car. This may be household, any non-metal objects or any other kind of refuse. Its always recommended to inspect the car thoroughly before passing it on for scrap to be sure you haven't left any personal or valuable items in it.
Private sales are the trickiest but likely to net you the most money. However, you will need to be willing to advertise, set up appointments, have people come and inspect and test drive the vehicle, and transfer the title yourself. Having certain maintenance reports and other details on hand may also be necessary in order to successfully sell the car.