Is It Possible To Re-reference A Column Alias From A Select Clause In Another Column Of The Same Select Clause?

Example, suppose you have these 2 tables

(NOTE: My example is totally different, but I'm simply trying to setup
the a simpler version, so excuse the bad design; not the point here)

CarsSold {
CarsSoldID int (primary key)
MonthID int
DealershipID int
NumberCarsSold int
}

Dealership {
DealershipID int, (primary key)
SalesTax decimal
}

so you may have many delearships selling cars the same month, and you
wanted a report to sum up totals of all dealerships per month.

select cs.MonthID,
sum(cs.NumberCarsSold) as 'TotalCarsSoldInMonth',
sum(cs.NumberCarsSold) * d.SalesTax as 'TotalRevenue'
from CarsSold cs
join Dealership d on d.DealershipID = cs.DealershipID
group by cs.MonthID

My question is, is there a way to achieve something like this:

select cs.MonthID,
sum(cs.NumberCarsSold) as 'TotalCarsSoldInMonth',
TotalCarsSoldInMonth * d.SalesTax as 'TotalRevenue'
from CarsSold cs
join Dealership d on d.DealershipID = cs.DealershipID
group by cs.MonthID

Notice the only difference is the 3rd column in the select. My
particular query is performing some crazy math and the only way I know
of how to get it to work is to copy and past the logic which is
getting out way out of hand...

Thanks,
Dave