invest in karachi stock exchange ......only In IP0's also called application shares...u can earn good money.
or come to pakistan buy (dont lease) couple of suzuki alto;s or cultus and give it on contract... u can buy more and do the same as long as u can manage it. but good thing is start with low numbers
if not then put ur money in fixed deposit like on 10-13% so it can grow and at the same time u can use this deposit as collateral and use bank finance facility and use this money in construction projects like buying a plot of 120 sq yds and build a house and sell it ( but do this in developing areas where lower income ppl are willing to buy and demand is high)
these are some options however u can wisely invest this money in UK as well like buying couple of take aways and coz an average take away give u net profit of atleast 3 grands in UK.
and forget ab importing cars coz so many big sharks are working around and also its more expensive to import a car from UK. mostly importers are importing cars from japan.
again these are only few possiblities.. pakistan has a lot to offer.