By James Rodger & Joseph Wilkes Warning flags are being raised for motorists with modified cars, as failure to report a trio of common car adjustments could leave one reeling from staggering penalties issued by the DVLA. The galling fines can potentially soar up to £5,060 and nine penalty points on your licence are at the risk. The three alterations in question, often glazed over by drivers -lowering suspension, adding giant spoilers, and tinting windows \- can culminate in total fines amounting to a wallet-wrenching £5,060. Per stats scooped by Compare the Market, 67,796 proud motor-owners wi…