Michelin tyres are among the best general all round tyres you ban buy, and I will use them wherever possible. The price of tyres varies due to several factors, The quality, name, and also the size. In my case having 16 inch rims meant that I had to pay more than if I had bought fifteens, or even 17's! This is due to supply & demand, they simply do not make as many sixteen inch tyres.
I usually get a good deal, and you should have to pay less more if buying two or four (always expect a discount on tyres) You will either pay extra for fitting, or it may be included in the purchase price, no problem as long as you know.
I ask for my balancing weights to be fitted on the inside of the rim, out of sight, rather than on the outside?
New tyres need to be be run in, and then checked as often as you can, both for pressure, and also wear. The current trend is not to rotate your tyres onto different axles, however, it does even out the wear which makes them last longer. One disadvantage of this is that all the tyres wear out at the same time, and most people prefer to change two at a time.
Many tyres nowadays have the direction of rotation on them. If this is the case with your tyres, you must not use them the "Wrong way round" except in the event of a puncture for instance, and then keep the speed low and do not expect too much grip.
Other tyres have "outside" marked on the sidewall, so make sure yours are fitted the correct way round.
Do you know what your pressures are? What it says in the handbook isn't always correct. This is because the manufacturers have to state a pressure which is suitable for an average driver, with an average load. Yours may be much different, so it's best to have a decent tyre fitter's opinion after a while, you could well find that yours are wearing on the middle for instance, indicating too much pressure, even though it is correct according to your handbook.
A good tyre fitter is worth his weight in gold, Mine immediately knows if my steering geometry is out, because of his experience, he feels where the tyre is wearing, in some cases this can save premature wear on my tyres, and thus save me a fortune, apart from affecting safety.
I will also mention that your tyres will look better, and last longer, if you use tyre slick, this will give your tyres a wet look, as well as protecting them from UV rays, and also the elements.
This "Modern" Car tyre was invented by Michelin, The story goes that The 2 brothers, Édouard and Andre Michelin, ran a rubber factory in France. One day, a cyclist with a punctured pneumatic tyre arrived at the factory. His tyre was glued onto the rim, and It took over three hours to remove it and repair the tyre, which then had to be left overnight to dry. The next day, Edouard took the repaired bicycle into the factory yard for testing. After just a few hundred meters, this repair failed. Despite this setback, the young Mr Michelin was still enthusiastic about the pneumatic tyre, and along with his Brother Andre, made their own tyres, which didn't need glue.
In 1891, they took out a patent for the removable pneumatic tyre. The company even invented the radial ply tyre. The rest as they say, is history.
Whatever tyres you choose, you should examine them on a weekly basis, & also before a long drive. You should have no cuts or bulges, no evidence of sharp objects sticking out, and there should be 1.6mm tread in a continuous band, across three quarters of the tread. The minimum for Motorcycles and Trucks & Buses in just 1mm. Most of Europe insist on 2mm, and the less tread you have, the greater chance of aquaplaning.
Many cars nowadays are supplied with a "Space Saver" spare wheel, these are safe up to 50MPH, and are for temporary use only.
Please check your tyres, remember the spare too.