higher tax bracket

stationairy1901

Sorry for the newbie questions but just moved into the higher tax bracket due to a promotion at work.

I receive around 62K per year with around a 15% bonus per year paid in march subject to company performance. I also pay 13% of my salary into my pension through work which is take out of my gross salary (before tax) and they contribute a maximum of 10%

I currently receive around £3.2K per month

I have been looking at electric vehicles through a salary sacrifice as i believe this is taken on the gross so would save me tax 

question would be 

1) this is around 10K per year in salary sacrifice so would this mean i would only pay 20% on my whole salary as with pension contribution it takes me under the 40% limit ? (if i paid in £3300 of my bonus into my pension)
2) am i really getting the saving i think i am by moving into the lower bracket ?
3) excluding the electric car question and just thinking of my salary as is if i put the delta between what i get now and the lower tax bracket £21300 would i really save £8.5K in take putting the £21.3K in to my pension ? So if i have my figures right of the £21.3K this equates to £1775 per month which is broken down £710 i pay to tax man and £1065 to me 

any help you can offer would be much appreciated and if i have all wrong after laughing please point out my mistakes

Dazed_and_C0nfused

Is it £62k plus 15% bonus or £62k including the bonus?

What saving do you think you are getting?

Where are you getting the £21.3k figure from?

stationairy1901

The 62k is before the 15% so 71.3 I totally though this does depend if the company hits targets.

The 21.3k is the 71.3k minus the 50k to hit the 20% limit